Eleven Entrance Help

Monday, May 12, 2014

Capsule 11

Welcome to Eleven Entrance Help!!
Here below are the most asked questions for entrance facing students.
Its in the format as below:
<Question Code> <Question> <Options> <Answer>

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For example:
'...... 1,"Tapeworm has no digestive system because:",,"it is a parasite","it lives in intestine","it doesn’t need food","it absorbs its food from general body surface",4.........'
Here {1} is question code, {"Tapeworm has no digestive system because:" is question, "it is a parasite","it lives in intestine","it doesn’t need food","it absorbs its food from general body surface"} are choices and {4} is answer.
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275,"Which property of a block of metal remains constant when the metal is heated?",,"Density","Mass","Volume","Surface area",2
276,"The resistance of two wires X and Y are in the ratio 2:1, their lengths, in the ratio 1:2 and their diameters are also in the ratio 1:2. The ratio of the resistivities of X and Y are then.",,"1:2","1:1","2:1","1:4",3
277,"A surf-board moves at 5m/s on the crest of a wave. The distance between wave crests is 10m. the frequency of the wave motion is:",,"0.5 Hz","5Hz","1Hz","10Hz",3
278,"Greatest pressure is there in:",,"man standing on beach","a brick resting on the ground","an elephant standing on the ground","a knife cutting a piece of meat",4
279,"Which is the poorest conductor of heat energy?",,"air","brass","wool","vacuum",3
280,"A tank 3m long, 1m wide and, 0.5m deep is filled with oil which weighs 12,000N. What is the pressure on the base of the tank due to the oil?",,"4000 pa","18000 Pa","6000 Pa","8000 Pa",1
281,"Two similar cricket balls are released from a 20m and 10m high. Which quantity is same for both balls?",,"acceleration","final speed","increase in velocity","time of travel",1
282,"A tape-recorder is rated at 12W, 2A. How many 1.5V batteries are needed in the tape-recorder?",,"2","6","4","8",3
283,"There are 2000 turns in secondary and 500 in the primary coils. If 240v is across primary, what is the voltage across secondary?",,"60V","500V","960V","2000V",3
284,"Which instrument, can give a reading of 24°C?",," Ammeter","Thermometer","Barometer","Voltameter",2
285,"By what process does the smell of a gas spread to fill a room?",,"diffraction","reflection","diffusion"," evaporation",3
286,"When water is heated steadily, it's temperature will stop rising when the water starts to:",,"boil","condense","freeze","melt",1
287,"A battery drives 50c of charge round a circuit. The work done is 750J. What is the electromotive force of the battery?",,"0.07V"," 700V"," 15V","800V",3
288,"What would a drummer do to make the sound of a drum give a note of lower pitch?",,"hit the drum with larger force.","hit the drum with smaller force.","loosen the drum skin.","tighten the drum skin",3
289,"What type of image is produced at the back of the eye?",,"real, erect, diminished.","real, inverted, diminished","virtual, erect, diminished.","virtual, inverted, diminished.",2
290,"The speed of light in a certain transparent substance is 2/5 of its speed in air. The index of refraction is:",,"0.4","2","2.5","5.0",3
291,"Real images formed by single convex lens are always:",,"on the same side of the lens as the object.","inverted","erect","larger than the object",2
292,"The rainbow is produced by:",,"Refraction of light only.","Total reflection of light only.","total internal reflection and refraction.","Diffraction of light.",4
293,"A person on earth may see the sun even when it is below the horizon because the atmosphere:",,"reflects light","absorbs light","refracts light","polarizes light",3
294,"Which unit is the same in all the three systems of measurement?",,"mass","length","timetime"," temperature",3
295,"The minimum no. of vectors of unequal magnitude required to produce zero resultant is:",,"two","three","four","more than four",0
296,"The distance covered by the body in time t is proportional to square of the time t. the acceleration of the body is:",,"increasing","decreasing","zero","constant",1
297,"An air bubble in water behaves as:",,"convex lens","concave lens","plano-convex lens","plano concave lens",2
298,"Two plane mirror are at right angles to each other. A man stands between them and combs his hair with right hand. In how many of the image will be see be seen using his right hand.",,"None","1","2","3",4
299,"At sunrise and sunset the sun looks above horizon, because:",,"The sun is hottest at these times.","Of the scattering of light.","Of the effects of refraction.","Of the effects of diffraction.",3
300,"In case of liquids Ohm’s law is:",,"Fully obeyed","Partially obeyed","No relation between current and pd.","None of these.",1
301,"The heater element in an electric iron is made of:",,"nichrome","iron","constantan","tungsten",1
302,"The Fahrenheit thermometer and Kelvin scale thermometer would show equal reading at:",,"574.25","500","25.6","635.3",1
303,"Electric power is transmitted over long distance through conduction wire at high voltage because:",,"It reduces the possibility of theft of wire.","Less power loss.","Generators produce energy at high voltages.","High voltage travels faster",2
304,"A charged particle enters in a strong magnetic field. Then its kinetic energy:",,"increase","decrease","remain constant","first increases and then become constant",3
305,"Two parallel conductors carrying current in opposite direction:",,"Repel each other","Attract each other","Cancel each other","No effect",1
306,"An iron cube floats in a vessel containing mercury at 20ºC. If the temp is increased by 100ºC, the cube will float:",,"lower","higher","at same level","lower or higher depending on mass of cube.",1
307,"What is the minimum distance between an object and its real image formed by a convex lens?",,"0","f","2f","4f",4
308,"The ratio of n identical resistances in series and parallel is:",,"1/n","n#-2","n#2","n#3",3
309,"A child looking into a small polished hemispherical bowl sees an erect image of himself 21cm from the bowl. He turns the bowl over and sees a further erect image of himself 7cm from the bowl. What is the focal length of the bowl?",,"7cm","21cm","14cm","none",2
310,"If the normal force is doubled, the coefficient of friction is:",,"not changed","halved","doubled","tripled",3
311,"A wooden block if floating in a trough of water. If the trough falls freely, the upward thrust on the wooden block will be:",,"Same as before","More than earlier","Zero","Equal to weight of block in air",3
312,"In a particular system, the unit of length, mass and time are chosen to be 10cm, 10gm and 0.1s respectively, the unit of force in this system will be equivalent to:",,"0.1N","1N","10N","100N",3
313,"Which of the following is a vector?",,"pressure","work","current density","electric current",3
314,"Which of the following shows that the earth behaves as magnet?",,"Repulsion between like poles","Attraction between unlike poles","Null points in the magnetic field of a bar magnet","No existence of isolated magnetic poles.",3
315,"A body of mass 20kg initially at rest is falling down a tower. After 5 sec, at a point the K.E. was equal to P.E, what is height of the point?",,"100m","125m","140m","200m",2
316,"If the length of the conductor is increased 4 times the original length of the conductor and if original resistance be R, the final resistance will be:",,"4R","8R","16R","R/4",3
317,"The intensity of two light sources can be measured by:",,"photometer","optometer","intensity meter","lactometer",1
318,"Two moving bodies of masses M and 4M have equal linear momentum. What is the ratio of their Kinetic energies?",,"1:4","1:2","2:1","4:1",4
319,"For simple microscope, object should be placed between:",,"focus and center of curvature","focus and twice focus","beyond twice focus","at focus",1
320,"A man can jump 2 meters in earth. If the acceleration due to gravity on moon is (1/6)th times that of earth. How high can the man jump?",,"6m","12m","9m","8m",2
321,"Loudness of sound in normal conversation is:",,"50 dB","60 dB","70 dB","80 dB",1
322,"A man stand in a narrow steep sided valley. When he fires bullet he hears 2 echoes, one after 1 sec and other after 2 sec. If velocity of sound is 330 m/s, find the width of the valley?",,"330m","495m","660m","990m",2
323,"When the resistances are joined in series the net resistance is greater than the greatest resistance when resistances are joined in parallel:",,"Net resistance > greatest resistance","Net resistance = any resistance","Net resistance > least resistance","Net resistance < least resistance",4
324,"A thin string can be passed through the block of ice without breaking the ice cube block into two pieces. It can be possible by principle of:",,"Ebullition","Regelation","Fusion","Latent heat",2
325,"For which action, more force is necessary?",,"to pull the body","to push the body","both require equal force","dpend on condition",4
326,"A car moves half way with the speed of 60 km/hr and in the rest of the way it moves by 40 km/hr. Average speed of the car is:",,"100 km/hr","48km/hr","50 km/hr","60 km/hr",2
327,"A book lying on the table remains there till eternity. This is:",,"3rd law of motion","2nd law of motion","1st law of motion","Lenz’s law",3
328,"A bullet is dropped from the same height while another bullet is fried horizontally, they will hit the ground:",,"one after the another","simultaneously","depends on the observer","none of the above",2
329,"Two bodies A and B are projected form the same velocity at angle 15o and 75o with the horizontal. Then:",,"Body A will have maximum horizontal range","Body B will have maximum horizontal range","Both A and B will have equal horizontal range","None of the above",3
330,"The focal length of a concave lens is 30m. Where should an object be placed so that its image may be 1/10th of its own size?",,"200cm","250cm","270cm","80/3 cm",3
331,"The water is falling on the blades of a turbine from a height of 50m. 100 kg of water pours on the blade in one second. Assuming that whole of the energy is transferred to the turbine, what is the power delivered to the turbine?",,"100 kw","50kw","25 kw","10kw",2
332,"A bullet when fired at a target has its velocity decreased to 50% after penetrating 30 cm into it. Then the additional thickness it will penetrates in cm before coming to rest is:",,"10 cm","10 cm","40 cm","60 cm",3
333,"A ball is thrown vertically upwards in air. If air resistance cannot be neglected then the acceleration of the ball at the highest point is:",,"g",">g","<g","0",1
334,"A block of wood floats in a liquid with four-fifth of its volume submerged. If the density of the wood is 800 kg/m3, find the density of the liquid",,"1000","500","2000","1500",1
335,"If 200ml of tea at 90oC is mixed with 10ml of milk at 15oC, what will be the final temperature of the mixture?
                Assume that the specific heat capacity of milk equals that of tea.( mass of 1ml milk = mass of 1ml tea = 1g)",,"80oC","86.4oC","90oC","100oC",2
336,"Calculate the output in a transformer if input voltage is 220v, ratio of the number of turns in secondary to the primary coil is 0.25.",,"55V","60V","45V","50V",1
337,"In a block and tackle of 4 pulley system, a load of 800N is overcome. If M.A. is 3 calculate efficiency.",,"25%","50%","75%","100%",3
338,"A convex mirror has a focal length f. A real object is placed at a distance f/2 in front of it from the pole. The mirror produces an image at:",,"Infinity"," f","2f","f/3",4
339,"A block hung on a wall has marks instead of numerals in its dial. On the adjoining wall, there is a plane mirror and the image of the clock in the mirror indicated the time 4.20. Then the time on the clock is:",,"7:40","4:20","2:40","4:07",1
340,"A balloon has 5 gm of air. A small bole is pierced into it. The air escapes at a uniform rate with a velocity of 4 cm/sec. If the balloon shrinks completely in 2.5 seconds, then the mean force acting on the balloon is:",,"2 dynes","50 dynes","8 dynes","8 Newton",3
341,"A hammer weighing 1kg moving at a speed of 10m/s strikes the head of nail driving it 10cm into the wall. If mass of nail be negligible, find acceleration during impact?",,"-500 m/s#2","+500 m/s#2","-200 m/s#2","+200 m/s#2",1
342,"Calculate the power of engine required to lift 90 metric tons of coal per hour from a mine whose depth is 200m. Given that g = 9.8 m/s2    and 1 metric ton = 1000 kg",,"4.9 kw","49 kw","0.49 kw","490 kw",2
343,"The principle of moment is followed by:",,"First class lever","Second class lever","Third class lever","All",4
344,"A lever suitable for raising a block of 800N through a vertical distance of 6 cm with a velocity ratio of 10. Given that the efficiency is 80%. Calculate the effort applied.",,"100 N","200 N","150 N","50 N",1
345,"If the Bi-metallic strip will be heated, the metal with larger linear expansivity:",,"becomes convex side","becomes the concave side","it cannot be predicted","remains straight",1
346,"If the symbols have usual meanings, the magnification(m) is related to (f) and (u) by relation",,"(f-u)/f","–f/(u+f)","m = (u-f)/f","m = -f/(f-u)",4
347,"Which of the following has greatest resistance?",,"100 watt bulb","60 watt bulb","20 watt bulb","10 watt bulb",4
348,"In the graph of V vs I, for conductor A, slope = tanx, and for conductor B, slope = tany. If y>x, which of the following is correct?",,"resistance of A > resistance of B","resistance of A < resistance of B","resistance of A = resistance of B","None",2
349,"The two points on the principal axis that if object is placed at one of two points, the image is formed at next point are called:",,"conjugate points","parallel points","corresponding point","point of achromatism",1
350,"Two bodies of masses m and 4m have equal kinetic energy. The ratio of their speeds will be:",,"2:1","1:2","1:1","4:1",1
351,"The Fahrenheit thermometer and Raumer thermometer shows the equal reading at:",,"25","25.6","24.6","24.7",2
352,"A stone of mass 1 kg falls from the top of a vertical cliff. After falling for 3sec it reaches the foot of cliff and penetrates 25 cm into the sand. Find the upward force exerted on the stone.",,"1600 N","1700 N","1800 N","1850 N",3
353,"The frictional force and normal reaction of a body resting on the surface are respectively:",,"scalar and scalar","vector and scalar","scalar and vector","vector and vector",4
354,"A man stands between two sound reflecting board when he claps he hears 2 echoes, one after 1 sec and other after 3 sec. If velocity of sound is 330 m/s, what is the distance of boards?",,"640 m","650 m","660 m","670 m",3
355,"Light Year is the measurement of:",,"time","distance","velocity","acceleration",2
356,"Colour of light is characteristic of:",,"amplitude","frequency","wavelength","speed",3
357,"A body is projected vertically upward with initial velocity of 19.6 m/s. It comes back to surface of Earth in:",,"2 secs","4 secs","6 secs","8 secs",2
358,"A machine gun fires 10g bullet at rate of 10 bullets/sec with speed of 500m/s. Force required to hold the gun is:",,"5000 N","500 N","50 N","150 N",3
359,"A rubber ball is dropped from a height of 5m and rebounds with a velocity which is ½ of velocity with which it hits the ground. To what height will it rise on rebounding?",,"1.25 m","1.125m","1m","2.25m",1
360,"Two bodies one light and other heavy have equal kinetic energies, which of the them has greater momentum?",,"heavy one","lighter one","both have same momenta","none",1
361,"If graph is plotted between Celsius and Fahrenheit scales, what will be slope of the graph?",,"1/5","5/3","9/5","5/9",3
362,"Two bulbs of 25W, 100W have ratio of resistances:",,"1:4","4:1","16:1","1:16",2
363,"A stone ‘A’ is dropped from a cliff of height h and another stone ‘B’ if same mass is thrown horizontally with u at same instant. Which of following is true?",,"A will reach ground first","B will reach ground first","both ‘A’ and ‘B’ reach ground at same time","‘A’ or ‘B’ depending up on value of u",3
364,"A gun of mass 1 kg fires a bullet of mass 20kg. If kinetic energy of bullet is 100J, with what kinetic energy does the gun recoil?",,"5J","20J","2J","None of these",3
365,"A concave mirror of focal length 20cm forms an image double the size of object. The position of object form pole of mirror is:",,"15cm","20cm","30cm","60cm",3
366,"Good absorber are:",,"good reflector","reflector","good emitter","bad emitter",3
367,"At what depth below the earth surface the acceleration due to gravity is same as that the height 2km above surface.",,"1km","2km","4 km","None of these",3
368,"A fish looks straight upward through a water-air interface and sees a fly 40mm directly above. At what point should the fish aim in order to catch the fly.",,"20mm","30mm","40mm","50mm",2
369,"An object weights 30 g in air and 25 g when totally immerged in water. Density of the object is:",,"4 g/cm#3","5 g/cm#3","6 g/cm#3","8 g/cm#3",3
370,"Temperature of a substance increases by 500C. What will be increase in temperature on Kelvin scale?",,"323 K","223 K","50 K","35K",3
371,"Metal which shows anomalous behavior as water is:",,"Invar","Steel","anitimony","copper",3
372,"A substance having more specific heat:",,"gets heated slowly and store long time","gets heated quickly and store long time","gets heated slowly and store short time","gets heated quickly and store short time",1
373,"A wire of resistance 20 is stretched such that its radius become half, what will be new resistance?",,"40","80","16","320",2
374,"If the resistance of a circuit having 20V source is increased by 5ohm, the current in the circuit drops to 0.4 ampere. Calculate the original resistance of the circuit.",,"45ohm","50ohm","55ohm","60ohm",1
375,"The velocity of sound is air increases with:",,"the increase in temp. of air","the decrease in temp. of the air","the increase atm. Pressure","the decrease of atm Pressure",1
376,"When source of sound moves towards a stationary observer, the apparent pitch of sound is:",,"lowered","increased","unchanged","none",2
377,"A car can be stopped over a distance x when its momentum is P. What will be the stopping distance when the momentum is 2p?",,"x","2x","4x","8x",3
378,"What are the essential requirements for the heater filament?",,"high resistivity, low melting point","low resistivity, low melting point","high resitivity, high melting point","low resistivity, high melting point",3
379,"A ball of mass 50gm is thrown upwards. It rise to a maximum height of 100m. At what height its kinetic energy will be reduced by 70%?",,"30m","40m","60m","70m",4
380,"Out of following which colour a single wavelength beam can’t be obtained?",,"Red","Green","White","Blue",3
381,"A well cut diamond appears bright because:",,"It emits light","Of large density","It is a crystal","Of total internal reflection",4
382,"Ability of the eye to see objects at all distance is called:",,"Binocular vision","Myopia","Hypermetropia","Accommodation",2
383,"You are given three equal resistors. How many groups of resistances can be obtained by joining them in series and parallel grouping?",,"2","3","4","6",3
384,"A trough full of water is placed on a spring balance. If we put our hand in water without touching the trough how will be reading of the balance change?",,"Decrease","Increase","Remain changed","It is not possible to predict",2
385,"The mean distance of sun from the earth is 1.5×108 km the time taken by the light to reach earth from the sun is:",,"0.12 min","8.33 min","12.5 min","6.25min",2
386,"A source produces 20 crests and 20 troughs in 4 seconds. The crest is 3cm away from the first. The speed of wave is:",,"15m/s","0.15m/s","0.12m/s","12m/s",2
387,"There is a hole in a metal sheet, on heating the diameter of the hole will",,"increase","decrease","no change","disappear",1
388,"What is the mass of the body at the moon if its mass is 36N in earth?",,"6N","12N","18N","36N",1
389,"What are the units for moment and momentum?",,"Kgm/s & Nm",") Nm2 & kgm/s","J/kg m/s","Nm & kgm/s",4
390,"A person inside a pond, will see a tree outside:",,"taller","shorter","same size","no",1
391,"A person is running towards a convex Mirror. How will his move with respect to him:",,"slower","faster","very fast","no effect",1
392,"If muscle = power × time, then the unit for muscle is:",,"Joule","Newton","Dyne","oC",1
393,"There is water at 4oC on a glass till the top. On heating or cooling the water level will:",,"decrease and increase","increase","decrease","increase and decrease",2
394,"If there are two vectors 5 N and 10 N which cannot be the answer to the resultant of two vectors?",,"15 N","5 N","11.18 N","16 N",4
395,"What is the frequency of Earth?",,"1.16×10-5Hz","24Hz","86400sec","86400Hz",1
396,"A bottle of water at 0oC is opened on the surface of moon which of the following correctly expresses the behaviour of water in it?",,"It will freeze","It will decompose into H2 & O2","It will boil","None of the above",3
397,"Which of the following operations between the two vectors can yield a vector perpendicular to either of them?",,"Addition","Multiplication","Subtraction","Division",2
398,"Same size of image as that of the object is given by:",,"convex mirror","concave & plane mirror","plane mirror","none",2
399,"If the displacements of a particle is zero, then what can we say about the distance covered?",,"It must be zero","It cannot be zero","It is negative","It may or may not be zero",4
400,"A person sitting in front of a mirror finds his erect image larger than himself. This implies that mirror is:",,"plane","concave","convex","none",2
401,"The resistance of a wire is doubled if:",,"its radius & length both are doubled","its radius is, doubled & length doubled.","radius halved & length doubled.","radius & length both halved.",4
402,"Which of the following has highest specific heat?",,"aluminium","copper","water","silver",3
403,"If the earth stops rotating, the value of ‘g’ at the equator will:",,"increase","remain same","decrease","none",1
404,"A vector changes:",,"if it is rotated","if co-ordinate axes are changed","if it is shifted translation wise","in all",1
405,"Work needed to be done to generate heat equal to 1 kcal is:",,"4.2 J","4.2×103J","4.2×107J","None of them",2
406,"Which of the following at 1000C produces most severe burn?",,"Hot air","water","Steam","Oil",3
407,"The frequency of man’s voice is 300 Hz. If velocity of sound waves is 336 m/s, the wavelength of the sound is:",,"300/336 m","300×336 m","1.12 m","None of above",1
408,"A bomb explodes on the moon. How long will it take for the sound to reach the earth?",,"10s","1000 s","1 day","None of the above",4
409,"It is easier to pull a lawn roller the to push it because pulling:",,"involves sliding friction","involves dry friction","increase the effective weight","decreases normal reaction",3
410,"Which of the following pairs of displacement can’t be added to produce a resultant displacement of 2m?",,"1m and 1m","1m and 2m","1m and 3m","1m and 4m",4
411,"The time of swing of pendulum depends on:",,"shape of the bob","density of the bob","length of the pendulum","weight of the bob",3
412,"Which of the following is transmitted by a wave?",,"velocity","momentum","energy","amplitude",3
413,"The view finder of a motor car is a:",,"cylindrical mirror","concave mirror","convex mirror","plane mirror",3
414,"One horse power is equal to:",,"458w","776w","108w","36w",2
415,"Distance between two poles of a magnet is known as the:",,"geometrical length of a magnet","magnetic length of a magnet","field of magnet","none of the above",2
416,"The ultimate source of magnetic energy is:",,"Neutrons","molecular magnet","rotating electrons","atomic magnet",3
417,"The sure test of magnetization is:",,"induction","attraction","repulsion","attraction and induction both",3
418,"A beaker is completely filled with water at 40C . It will overflow:",,"when heated but not cooled","when cooled but not when heated","both when heated and cooled","neither heating nor cooling",3
419,"The unit of loudness is:",,"Bel","Decibel","Phone","All of the above",2
420,"A body fully immersed in a fluid experience on upward thrust which depends on:",,"the density of the body","the volume of the body","the weight of the body","none",2
421,"Sound travels faster in:",,"air","water","vacuum","solid",4
422,"A truck takes 20s to travel the first 80m, and another 10 s to travel a further 70m. What is the average speed?",,"0.20","2.3","4.0","5.0",4
423,"A hollow ball is released from the bottom of a pool. After a short time it rises at a constant speed. Which statement best describes the resultant force then acting on the ball?",,"Upwards and equal to the ball’s weight","Upwards and greater than the ball’s weight","Upwards and less than the ball’s weight","Zero",4
424,"A force of 3.0 N and a force of 4.0 N acts on an object at the same time. Which of the following force cannot be the resultant force on the object?",,"0.5N","3.5N","4.0 N","5.0 N",1
425,"The height of the column of mercury in a mercury barometer on a particular day is measured at 75 cm. What is the value of the atmospheric pressure? (Density of mercury = 13600kg/m3, g = 10N/kg)",,"1810 Pa","10200 Pa","102000 Pa","181000 Pa",3
426,"Which type of image is produced by a converging lens on a screen?",,"inverted and real","inverted and virtual","upright and real","upright and virtual",1
427,"A man is boating in a pond. When he reaches the middle of the pond, he decides to stop the boat and fish. So he throws an iron anchor to the water in the pond. What happens to the level of the water?",,"The level of water increases.","the level of water decreases","the level of water remains same","the anchor floats in the water.",2
428,"Which statement about a transformer is true?",,"it will only work if a.c. is used.","it will work with either a.c. or d.c","it is always used to increase voltage.","it should give out more energy than it receives",1
429,"Which of the statement about an alpha particle (fast-moving helium nucleus) is not true?",,"It can be deflected by a magnetic field","It can be deflected by an electric field.","It has two neutrons.","It travels at the speed of light in vacuum.",4
430,"A man was boating in a pond. When he realized that the water in his water bottle was dirty, he threw the water in the pond. What happened to the level of the water in the pond?",,"increased","remained same","decreased","none of the above",2
431,"Let a wire have a resistance of “R”. If this wire is stretched to double its length, then the new resistance will be:",,"R","2R","R/2","4R",4
432,"On which factor does the resistance do not depend?",,"current flowing through the resistance","temperature","length","cross sectional area",1
433,"What should be used to measure the diameter of a steel ball bearing as accurately as possible?",,"measuring cylinder","micrometer screw gauge","rule","vernier calipers",2
434,"The acceleration of free fall on the Moon is 1.6 m/s2. The acceleration of free fall on the Earth is 10m/s2.
                A rock has a mass of 10 kg on the earth. Which statement about the rock is correct?",,"Its mass on the moon is 1.6 kg","Its mass on the moon is 10 kg","Its weight on the moon is zero","Its weight on the earth is 10 N",2
435,"A crane lifts a load of 6000N through a vertical distance of 15m in 30s. What is the average power during this operation?",,"200W","400 W","3000W","12000W",3
436,"If the angle between the incident and reflected ray is 80o, then find the angle of incidence?",,"40","50","80","100",1
437,"A step-down transformer changes 240 V a.c. to 12 V a.c. There are 600 turns on the primary coil. How many turns are on the secondary coil?",,"20","30","600","12000",2
438,"Why are high voltages and low currents used to transmit electrical energy over long distances?",,"to increase the electromagnetic radiation","to increase the speed at which electrons move","to reduce heat loss from the power line","to reduce the resistance of the power line",3
439,"Which pair contains one vector and one scalar quantity?",,"displacement : acceleration","force : kinetic energy","momentum : velocity","power : speed",2
440,"Starting from rest, a car of mass 1000 kg accelerates to 20 m/s in 10 s. The average power developed in that time period is",,"5 KW","10 KW","20 KW","40 KW",3
441,"Which of the following is a scalar quantity?",,"Force","Electric current","Torque","Displacement",2
442,"An airtight glass cage with a parrot sitting in it is suspended from a spring balance. The parrot starts flying inside the cage. Then the reading in spring balance will",,"increase","decrease","not changed","be zero",3
443,"A man is at rest in the middle of a pond on perfectly smooth ice. He can get himself to the shore by making use of Newton's:",,"First law","Second low","Third law","All the laws",4
444,"A piece of ice is floating in a jar containing water. When the ice melts, then the level of water:",,"rises","falls","remains unchanged","rises of falls depending on the mass of the ice",3
445,"A horseshoe can be made from a piece of metal by heating and then hammering the metal. Which property of the metal changes during the hammering action?",,"Density","Mass","Shape","Volume",3
446,"What happens to a sound wave when the note heard gets louder?",,"Its amplitude increases","Its frequency increases","Its wavelength increases","Its speed increases",1
447,"Which one of the following is the property of transverse wave only?",,"Reflection","Refraction","Interference","polarization",4
448,"Boiling water is changing into steam. Under this condition the specific heat capacity of water is",,"zero","1J/ kgoC","4200 J/kgoC","Infinity",4
449,"An electrical heater supplies 320 J in 1 minute to a 4.00 ? resister. The steady current flowing is then:",,"1.2 A","0.67 A","0.34A","0.16A",1
450,"A ball is thrown vertically upwards. Which one of the following quantities stays constant?",,"displacement","speed","kinetic energy","acceleration",4
451,"The kilowatt- hour is a unit of:",,"Charge","Energy","Power","Voltage",2
452,"Why is a positively charged object made neutral (discharged) by someone touching it?",,"Electrons flow on to the objects","Electrons flow from the object","Protons flow on to the object","Protons flow form the object",1
453,"The average frictional force, F, of the road on the car is:",,"600N","500N","100N","1100N",3
454,"Which one of the following pairs has one vector quantity and one scalar quantity?",,"speed and power","displacement and acceleration","potential energy and work","force and kinetic energy",4
455,"At what height above the ground must an object of mass 5 kg be placed so that it has the potential energy equal to the kinetic energy of another object of mass 5 kg and moving with the velocity of 10 ms-1?",,"1m","5m","10m","50 m",2
456,"When air pressure increases, the speed of sound in air:",,"increases","decreases","remains the same.","fluctuates randomly.",3
457,"If the temperature scale is changed from 0C to K, the numerical value of specifioc heat capacity of any object will:",,"increase","decrease","remains unchanged","increase by 273",3
458,"A hot-air balloon moving upwards has a total weight of 200 N and volume of 20 m3. Assuming the air density as 1.2 kgm-3, the net upward force on the balloon is:",,"24N","40N","176N","240N",2
459,"A machine of valocity ratio 5 is used to raise a load of 200N. The effort required is 250N. What is the efficiency of the machine?",,"50%","60%","75%","16%",4
460,"Which one of the following bulbs offers the least resistance when connected across a 220V a.c. supply?",,"A bulb of power rating 25W","A bulb of power rating 40W","A bulb of power rating 60 W","A bulb of power rating 100W",4
461,"Light rays of different colors travel in air with:",,"Same velocity","Velocity of air","Different velocity","Velocity of sound",3
462,"A ball is Project vertically upwards. Its acceleration at the highest point is:",,"Zero","can't be predicted","directed upwards","directed downwards",4
463,"A car traveling at speed of 30 kmh-1 is brought at rest in 8m by applying brakes. If the same car is traveling at 60kmh-1 it can be brought to rest with same braking power in:",,"32 m","24 m","16 m","28 m",1
464,"A body of mass10 kg is moving of 2m with uniform speed of 2ms-1. Its total energy is:",,"196J","216J","20J","316J",2
465,"The threshold frequency of normal human hearing is:",,"20000Hz","20Hz","more than 20000Hz","Less than 20Hz",2
466,"Consider a planet X that has a mass double the mass of the earth and density equal to the average density of earth. An object weighing W on the earth will weight at the planet X:",,"W","2W","W#2","W#2",1
467,"Which one of the following rules is applicable to find the direction of induced current in a straight conductor moving in a magnetic field?",,"Fleming’s left hand rule","Fleming’s right hand rule","Right hand thumb rule","Maxwell’s cork screw rule",2
468,"The formula of electric resistance is ---",,"R = VI","R = mad/I#2t","R = mad/I t","None",2
469,"Weakest Force is ---",,"centripetal force","mechanical force","gravitational force","electrical",3
470,"Two bodies, one lighter and other heavy, have equal kinetic energies, which of them has greater momentum?",,"the heavy one","the lighter one","both have same momenta","none of above",1
471,"At what temperature the Kelvin Scale will be double of that of Fahrenheit Scale?",,"176.69oF","189.72#oF","215.2#oF","312.5#oF",1
472,"If two plane mirror are inclined at 60#o, how many images will be formed?",,"6","7","5","4",3
473,"Which of the following can not form virtual image?",,"Plane mirror","Concave mirror","Convex mirror","All can form virtual image",4
474,"A person can see object at distance only nearest than 1m. He is suffering from ---",,"Hypermetropia","Myopia","Astigmatism","Presbyopia",2
475,"A calorimeter is made up of copper because it ---",,"is cheap","looks good","is good conductor of heat","does not get rusted",3
476,"Velocity of sound in vacuum is ---",,"340 m/s","3 × 10#8 m/s","?","0",4
477,"A wire of resistance 10? is stretched to double its length. What will be its new resistance?",,"104 ?","20?","40?","80?",3
478,"Which sets of quantities have same dimensions or same dimensional formula?",,"Frequency & velocity gradient","Energy & energy gradient","Thermal capacity & specific heat capacity","Angular velocity & velocity",1
0,"If a red rose is observed in a background with red light it will appear ---",,"Greenish yellow","Blue","Red","Invisible",4
0,"When light incident normally on a plane mirror then ---",,"Angle of incidence is 90o","Angle of reflection is 0o","Angle of deviation is 0o","Both a and c",2
0,"Unit of thrust is ---",,"Newton","Nm#-2","Dyne cm","None",1
0,"An ideal voltmeter has resistance ---",,"Infinite","Zero","Very large","Same as that of an ideal ammeter",1
0,"Which one of the following characteristic of the sound is affected by the change in temperature?",,"Wavelength","Intensity","Amplitude","Frequency",2
0,"Terminal potential difference is measured by ---",,"Ammeter","Galvanometer","Voltameter","None",4
0,"A piece of ice at 0oC is dropped in water at 0oC. The ice will",,"Melt","Not melt","Partially melt","Can't be predicted",4
0,"On the moon atmospheric pressure is ---",,"Zero","1 Pascal","Above 760 mm of Hg","None",1
0,"A man pushes a wall but fail to displace it. He does ---",,"Negative work","Maximum +ve work","+ve work but not maximum","No work",4
0,"A convex lens form a real image of an object placed at a distance u from the lens, at a distance v from it. The focal length of lens is ---",,"u>f>v","less than u and as well as v","v>f>u","more than u as well as v",2
0,"A kilo watt hour is a unit of ---",,"Energy","Power","Electric charge","Electric current",1
0,"The distance between a crest and next trough in a periodic wave is ---",,"2?","?","?/2","?/4",3
0,"The specific resistance of wire ---",,"varies with its length","varies with cross section","both a and b","None of the above",4
0,"The focal length of a plane mirror is ---",,"Zero","?","Finite but positive","None",2
0,"Two thermometers are spherical and other cylindrical; which one will respond more quickly to temperature changes?",,"Cylindrical","Spherical","Both","None",1
0,"Which of the following is not unit of energy?",,"Nm","J","Wh","KW",5
0,"Resistance of 1KW heater for 220 V supply is ---",,"484 ??","48.4 ?","4.84 ?","0.484 ?",2
0,"The unit of potential difference is ---",,"Volt","NmS#-1A#-1","Kgm#2S#-3A#-1","All",4
0,"The formula of power is ---",,"Fu","Fu2","Fa","None",1
0,"A ball takes t sec to fall from height h1 and 2t sec to fall from height h2. The ratio of height h1:h2 is",,"1:2","2:1","1:4","4:1",3
0,"When an object is thrown from ground by making an angle 45o with ground surface with velocity 20 m/s. Then maximum horizontal range covered by body is",,"400 m","40 m","8 m","4 m",2
0,"Planet X is twice the radius of planet Y and is of material of same density. The ratio of acceleration due to gravity at he surface of x to that at surface of Y is",,"1:4","1:2","2:1","8:1",3
0,"A piece of wood floats in water, what happens if it floats in Kerosene?",,"Sinks more","Sink less","Floats at same level","First Sink than rises",1
0,"The dimension formula of gravitational constant",,"[M#oL#3T#-2]","[M#1L#3T#-2]","[M#-1L#3T#-2]","[M#2L#3T#-2]",3
0,"If the incident ray on a fixed plane mirror is rotated through 20o, the reflected ray rotate through",,"10#o","20#o","40#o","140#o",2
0,"The refractive index of medium in which the total internal reflection just begins to take place at an angle of 45o is",,"1.3","1.4","1.5","1.6",2
0,"When two vectors of game magnitude are antiplarallel to each other then resultant of these two vectors is",,"0","1","Twice of magnitude","None",1
0,"When we see an object, the image of the object formed at retina is",,"Real & inverted","Erect & virtual","Erect & real","Inverted & virtual",1
0,"When the length of wire is increased five times its resistance becomes 50?. What is its original resistance?",,"2?","24?","10?","5?",3
0,"Mechanical advantage in a machine where a resistance W is overcomed by applying an effort P is:",,"W × P","W/P","P/W","P-W",2
0,"The value of g on the moon is 1/6th than that on earth. A body 60kg on earth has the mass on the moon is:",,"10 kg","360 kg","60kg","15 kg",3
0,"A kilowatt hour is unit of:",,"Energy","Power","Electric charge","Electric current",1
0,"When incident ray is rotated by 10o then reflected is ray rotated by:",,"10#o","20#o","40#o"," 5#o",1
0,"Decibel is:",,"Musical instrument","Musical note","Measure of sound level","Wavelength of noise",3
0,"The force of attraction between two unit masses placed at unit distance in (SI Unit) is numerically equal to:",,"6.67 × 10#-11","1","6.67 × 10#-10","6.67 × 10#+10",1
0,"At what temperature reading on Fahrenheit scale is three times as that on Celsius scale:",,"60#oC","80#oC","80oF"," (80/3)#oF",3
0,"Which of the following can't form virtual image?",,"Plane mirror","Concave mirror","Convex mirror","All can form virtual image",4
0,"The speed of sound of frequency 200Hz in air is 340m/s. The wavelength of the wave is:",,"59 cm","170cm","1.7 cm","34 cm",2
0,"Three identical resistances are connected in parallel if their equivalent resistance is 18? then the individual resistance is:",,"36?","54?","6?","2?",2
0,"Amoeba is:",,"Parasitic Protozoan","Free-living Protozoan","Holophytic Protozoan","Saprophytic Protozoan",2
0,"Sponge is:",,"Monoblastic animal","Diploblastic animal","Triploblastic animal","None",2
0,"Excretion in mammal is:",,"Ammonotelic","Uricotelic","Ureotelic","None",3
0,"Cervical vertebrae are found in:",,"Neck","Thorax","Abdomen","Tail region",1
0,"Whale is a:",,"Fish","Amphibia","Reptile","Mammal",4
0,"Which is not the character of cell membrane?",,"Elastic","Cellulosic","Semi-permeability","regenerative",2
0,"Which process is mainly responsible for the production of energy?",,"Circulation","Digestion","Respiration","Homeostasis",3
0,"The fluid inside the chloroplast is:",,"Karyoplasm","Matrix","Chloroplasm","Stroma",4
0,"Phloem consist of one dead cell which is:",,"Sieve tube","Phloem parenchyma","Phloem fibre","Companion cell",3
0,"Hard wood is obtained from:",,"Bryophyte","Pteridophytes","Angiosperm","Gymnosperm",3

Capsule 10

Capsule 9

Welcome to Eleven Entrance Help!!
Here below are the most asked questions for entrance facing students.
Its in the format as below:
<Question Code> <Question> <Options> <Answer>

___________________________________

For example:
'...... 1,"Tapeworm has no digestive system because:",,"it is a parasite","it lives in intestine","it doesn’t need food","it absorbs its food from general body surface",4.........'
Here {1} is question code, {"Tapeworm has no digestive system because:" is question, "it is a parasite","it lives in intestine","it doesn’t need food","it absorbs its food from general body surface"} are choices and {4} is answer.
___________________________________
298,"Who has discovered molecule term?",,"Dalton","Avogadro","Rutherford","None","2"
299,"Who has discovered nucleus of the atom?",,"Avogadro","Rutherford","Neil Bohr","None","2"
300,"Galena is the ore of:",,"Silver","Magnesium","Lead","copper","3"
301,"Molecular formula of plaster of Paris is:",,"CaSO$4.H$2O","(CaSO$4)$2.H$2O","CaSO$4.2H$2O","None","2"
302,"Molecular formula of green vitriol is:",,"CuSO$4.5 H$2O","FeSO$4.7H$2O","ZnSO$4,. 7H$2O","MgSO$4.7H$2O","2"
303,"Which of the following statement is not true for ethyne gas?",,"It is an unsaturated hydrocarben","It is the monomer of benzene","It satisfies the formula Cn H$2n -2","Benzene is natural polymer","4"
304,"Haematite is the ore of:",,"Zinc","Copper","Iron","None","3"
305,"A gas Y burns in air and adsorbed by palladium metal is:",,"Nitrogen","Oxygen","Hydrogen","None","3"
306,"The gas which is obtained by heating potassium nitrate, is absorbed by alkaline pyrogallate solution is:",,"N$2","O$2","NH$3","NO$2","2"
307,"BHC is an example of:",,"Fertilizer","Antiseptic","Insecticides","None","3"
308,"Iodine of Tincture is:",,"Antiseptic","Analgesic","Both a and b","None","3"
309,"Molecular formula of Bleaching powder is:",,"Ca(OCl)Cl","CaOCl","Ca(OCl)$2","None","1"
310,"Molecular formula of lunar caustic is:",,"KOH","NaOH","AgNO$3","None","3"
311,"Litharge is the ore of:",,"Zinc","Lead","Tin","Iron","2"
312,"How many grams of NaOH are needed to make 100 gram of a 5% solution?",,"0.5","5","20","None","2"
313,"How many grams of CO$2 can be prepared from 150 gram of calcium carbonate reacting with an excess of hydrochloric acid solution?",,"66","22","33","None","1"
314,"All of the following are compounds except:",,"Copper Sulphate","Carbondioxide","Washing Soda","Air","4"
315,"In general, when metal oxides react with water, they form solutions that are:",,"Acidic","basic","Neutral","None","2"
316,"Electrolysis of a dilute sodium chloride solution results in the cathode product is",,"Sodium","Hydrogen","Chlorine","Oxygen","2"
317,"A component whose molecular mass in 90 grams contain 40.0% carbon, 6.67% Hydrogen and 53.33% oxygen. What is true formula for the compound?",,"C$2H$2OH","CH$2O$4","C$3H$6O$3","C$3HO$3","3"
318,"How many moles of CaO are needed to react with an excess of water to form 370 gram of calcium hydroxide?",,"1","5","3","4","2"
319,"An organic compound has been found to possess the empirical formula CH$2O and molecular weight 90. Give its molecular formula (C = 12, H = 1, O = 16)",,"CH$3COOH","HCOOH","C$6H$12O$6","C$3H$6O","4"
320,"An organic compound on analysis was found to contain 10.06% carbon, 0.84% hydrogen and 89.1% chlorine. Calculate its empirical formula.",,"CHCl$2","CH$2Cl$2","CH$2Cl$3","CHCl$3","4"
321,"Which one is physical change?",,"burning of S in air","burning of C in air","corrosion of metal","conversion of white phosphorus to red phosphorus","4"
322,"How much sodium iodide will saturate 60 grams of water at 20°C, if its solubility be 178.",,"100","96","106.8","206","3"
323,"How many electrons are present in Fe+++ ion?",,"23","24","25","26","1"
324,"20 gram of a solution saturated with a salt at 80°C is cooled to 30oC. How much of the salt will crystalise out of the solution, if its solubility at 80°C and 30°C are 100 and 25 respectively?",,"15 gram","9 gram","6 gram","7.5 gram","4"
325,"When the ammonium nitrite is heated, we get:",,"O$2","N$2","NH$3","None","2"
326,"The ionic compound formed in between Gr I and Gr VII in periodic table is:",,"CaCl$2","AlCl$3","CCl$4","NaCl","4"
327,"You are given AgCl in aqueous solution, how would you separate AgCl?",,"sublimation","atmolysis","solvent extraction","filtration","4"
328,"Calculate the total no. of electrons present in 1.6 gm of methane if gram mol. weight of methane = 16g.",,"6.023 × 10#23","6.023 × 10#-23","6.023 ×10#21","6.023 × 10#20","1"
329,"Element used in photoelectric cell is:",,"Li","Na","Cs","Fr","3"
330,"The number of water molecules present in 1 litre of water is:",,"18","18 × 1000","NA","55.55NA","4"
331,"Which has maximum number of atoms?",,"24 gm of C(12)","56 g of Fe (56)","26 gm of Al (27)","108 gm of Ag (108)","1"
332,"Positron is anti-particle of electron. Positron is:",,"-1e#0","+1e#0","1H#1","+1e#-1","2"
333,"The correct ground state electronic configuration of chromium atom (At No: 24) is:",,"[Ar] 3d54s1","[Ar]3d4s2","[Ar]3d6s6","[Ar]4d54s1","1"
334,"Diagonal relationship is shown by elements of second period. Diagonal relation exists between:",,"Li and Mg","Na and Mg","K and Mg","Al and Mg","1"
335,"If the valence shell structure of an element is ns2np5, this element belong to:",,"alkali metal","inert metal","alkaline earth metal","halogens","4"
336,"The size of following species in increasing order is correct in:",,"I-<I<I+","I< I+ < I-","I+<I<I-","I-<I+<I","3"
337,"Which of the following has highest affinity for haemoglobin?",,"CO$2","CO","C","Blood","2"
338,"The liquefied petroleum gas mainly contains:",,"methane + ethane","ethane + propane","butane + isobutene","methane + propane","3"
339,"Commercially Hydrogen is obtained from:",,"coal gas","oil gas","marsh gas","producer gas","3"
340,"The acid anhydride of HNO$3 is:",,"NO$2","N$2O$4","NO$3","N$2O$5","3"
341,"Tear gas is chemically:",,"acetyl salicylic acid","chloropicrin","phenyl isocyanide","carbon monoxide","2"
342,"Which of the following is indicator of progress and prosperity of country?",,"HCL","HNO$3","Aquaregia","H$2SO$4","4"
343,"Formation of Vanaspati Ghee from soyabean oil with hydrogen in presence of heated nickel catalyst is known as:",,"Esterification","Hydrogenation","Hardening of oil","Both b and c","4"
344,"When Carbon-dioxide gas is passed through lime water up to saturation, we get colourless compound due to formation of:",,"Ca(OH)$2","CaCO$3","Ca(HCO$3)$2","None","3"
345,"The property of carbon to form long chain is called:",,"catenation","complex character","isomerism","vital force theory","1"
346,"Ores of copper metal is:",,"Galena","Azurite","Magnetite","None","2"
347,"FeCl$3 is example of ----- salt.",,"Acidic","Basic","Neutral","None","1"
348,"General formula of alkyl group is:",,"CnH$2n+2","CnH$2n","CnH$2n-2","CnH$2n+1","4"
349,"Water containing HCO3-- is removed by:",,"Boiling","Clarck’s method","Washing soda","both a and b","4"
350,"Molecular weight of heavy water is:",,"16","18","20","None","3"
351,"Maximum number of electrons in M shell is:",,"2","18","8","32","2"
352,"Number of electron present in 13Al+++ ion is:",,"13","10","16","None","2"
353,"Example of metalloid is:",,"Al","Fe","Cu","Sb","4"
354,"Very long periodic table consists of ----- groups",," 9","7","18","None","3"
355,"Example of amphoteric oxide is",,"CaO","SiO2","ZnO","CO","3"
356,"Atoms of different element, which have same neutron number but different atomic number are known as:",,"Isotopes","Isobars","Isotones","None","3"
357,"The relative abundance of two isotopes of At. Wt 85 and 87 is 75% and 25% respectively. The average atomic weight of element is:",,"75.5","85.5","87.5","86","2"
358,"Molecular formula of sodium metaluminate is:",,"Na$3AlO$3","Na$2AlO","NaAlO$2","None","3"
359,"C$4H$6 is example of:",,"Alkane","Alkene","Alkyne","Alkyl","3"
360,"Those chemical substances which donate proton are known as:",,"Acid","Base","Salt","None","1"
361,"Thickening of glass at the bottom after sometime is known as:",,"Annealing","Super cooling","Hardening","None","2"
362,"Different forms of same element, which have similar chemical properties but different physical properties are known as:",,"Isomerism","Allotropy","Polymorphism","both b and c","4"
363,"When ammonuium nitrite is heated, we get:",,"N$2+H$2O","N$2O+H$2O","NO+H$2O","None","1"
364,"The chemical substances, which absorbs moisture from atmosphere to become wet are known as:",,"Effloresecnce","Deliquesence","Saponification","None","2"
365,"Hydrogen is absorbed by Pt, Pd, N. The process of absorbtion of hydrogen is called:",,"emulsion","occlusion","effusion","diazotization","2"
366,"PbO$2 is:",,"acidic","basic","amphoteric","anhydride","3"
367,"Drying agent of ammonia is CaO, absorbent of NH$3 is:",,"conc. HCl","conc. H$2SO$4","fused CaCl$2","conc. HNO$3","3"
368,"What will be the number of moles in 13.5 gm of SO$2Cl$2?",,"0.1","1","10","100","1"
369,"What will be the number of moles of oxygen in one litre of air containing 21% of oxygen by volume under the standard condition?",,"2100/22400","210/224","21/224","21/2240","4"
370,"Which of the following principle limits the maximum number of electrons in orbital to 2?",,"Afbau principle","Pauli’s exclusion principle","Hunds","Heisenberg Uncertainty principle","2"
371,"Which of the following is not base?",,"NaOH","P(OH)$3","Al(OH)$3","ZnO","2"
372,"The coupling between the base unit of DNA is through:",,"Hydrogen bonding","Electrostatic bonding","Covalent bonding","Resonance","1"
373,"H$2O$2 is:",,"Hydrogen peroxide","oxygenated water","bleaching agent","all","4"
374,"Oxygen is used to purify water because:",,"oxygen is paramagnetic","absorbs harmful uv-radiation","destroys virus and bacteria","oxygen is reducing agent","3"
375,"Bakelite is thermosetting plastic. It is polymer of:",,"acetaldehyde + carbolic acid","formaldehyde + carbolic acid","Formaldehyde + Benzoic acid","Acetaldehyde + Benzoic acid","2"
376,"When excess of sodium hydroxide reacts with sulphuric acid, the resultant solution will have pH.",,"less than 7","equal to 7","more than 7","it cannot be predicted","3"
377,"Wine i.e alcoholic beverage is:",,"CH$3OH","C$6H$6","C$2H$5OH","C$3H$7OH","3"
378,"The least no. of carbon atom in alkane forming isomers is:",,"3","4","5","6","2"
379,"Substance which bring body temperature down is called:",,"Antipyretics","Analgesics","Antibiotics","None","1"
381,"Dolomite is chemically known as:",,"MgCO$3 + CaCO$3","MgOH + CaCO$3","MgCO$3 + Ca(OH)$2","None","1"
382,"Sylvine is:",,"FeCl$3","MgCl","KCl","AuCl","3"
383,"The first person to receive Nobel prize in chemistry is:",,"Rutherford","Chadwick","Lavoiser","Vant Hoff","4"
384,"Fractional distillation is used for separation of two miscible liquid and is based on difference in boiling points of two liquids. Fractional crystallization is based on:",,"Nature of crystal","weight of crystal","colour of crystal","solubility of solids in solvent","4"
385,"Which of the following pairs of gases contain same number of molecules?",,"16 gm of O$2 and 14 gm of N$2","8 gm of O$2 and 22 gm of CO$2","28 gm of N$2 and 22 gm of C$12","32 gm of O$2 and 32 gm of N$2","1"
386,"The percentage of nitrogen in urea is:",,"46%","23 %","28%","18%","1"
387,"Which of the following compound contains both ionic and covalent bond?",,"CH$4","H$2","KCN","CH$3Cl","3"
388,"Which of the following is most electronegative?",,"Oxygen","Chlorine","Fluorine","Iodine","3"
389,"Hardness of water is due to which pair of ion?",,"Ca#2+ and K#+","Mg#2+ and K#+","Ca#2+ and Mg#+","Ba#2+ and Zn#2+","3"
390,"Lunar caustic is:",,"AgCl","AgNO$3","Pb(NO$3)$2","NaNO$3","2"
391,"Which of the following is an acid salt?",,"Zn(OH) Br","Ca(HS)$2","NaCl","KCl","2"
392,"Valency of aluminate is:",,"-3","+3","-1","+1","1"
393,"Total number of elements present in 7th period is:",,"17","18","19","None","4"
394,"Boron is diagonal relation ship with:",,"Si","Na","Al","Mg","1"
395,"Stainless steel contains:",,"Fe + Cr + Ni + Ag","Fe + Cr + Ni + C","Cu + Zn + Ni","None","2"
396,"11-2 litre of steam contains ----- gram of hydrogen.",,"1 g","2 g","3 g","4 g","1"
397,"Molecular formula of calcium hypochlorite is",,"Ca (OCl3)$2","Ca (OCl2)$2","Ca (ClO)$2","None","3"
398,"Increase in oxidation number is known as:",,"Oxidation","Reduction","Reductant","Both a & c","4"
399,"When we go prom left to right in the same period, the atomic radius of the element:",,"Increases","Decreases","No any change","None","2"
400,"Formation of ethyl acetate fro acetic acid and ethyl alcohol in presence:",,"Etherification","Saponification","Esterification","None","3"
401,"When mixture of potassium hydroxide and ammonium ehloride is heated, we get a gas like:",,"N$2","NH$3","N$2O","NO","2"
402,"Which of the following is insoluble in water?",,"NaCl","CaCl$2","AgCl","BaCl$2","3"
403,"The example of noble metal is:",,"Argon","Iron","Palladium","Calcium","3"
404,"Example of anhydride of aqua fortis is:",,"N$2O$3","N$2O","NO","N$2O$5","4"
405,"Formation of sodium metal from fused sodium chloride is the example of:",,"Synthesis reaction","Analysis reaction","Reversible reaction","None","3"
406,"Burning of candle is:",,"Physical","Chemical","Both a and b","None","3"
407,"Water is ----- in nature.",,"Acidic","Basic","Amphoteric","None","3"
408,"When steam is passed over heated iron, we get:",,"FeO+H$2","Fe$2O$3+H$2","Fe$3O$4+H$2","None","3"
409,"20 gram saturated solution of given compound is heated at 80oC and cooled to 30oC, find the salt deposited, when the temperature is decreased from 80oC to 30oC, if the solubility of given compound at 80oC and 30oC are 100 and 25 respectively.",,"6gm","15gm","7.5 gm","None","3"
410,"Molecular formula of bleaching powder is:",,"Ca (OCl)Cl","Ca (OCl)$2","Ca Ocl$2","both a and c","4"
411,"When the mixture of sodium nitrite and ammonium chloride is heated, we get gas:",,"H2","O$2","N$2","NH$3","3"
412,"When sodium acetate is heated with soda lime, we get:",,"C$2H$6","C$2H$4","C$2H$2","CH$4","4"
413,"Those chemical substances which accept lone pair of electrons are known as:",,"Acid","Base","Salt","None","1"
414,"Those chemical substances in which there is increase in oxidation number is known as:",,"Oxidation","Reduction","Reductant","Both a and c","4"
415,"NH$4Cl is example of ----- salt.",,"Acidic","Basic","Neutral","None","1"
416,"Example of amphoteric oxide:",,"Na$2O","P$2O$5","SnO","N$2O","3"
417,"When we go form left to right in the same period, the atomic radius of the element:",,"Increases","Decreases","No change","None","2"
418,"Be has diagonal relation ship with:",,"Li","Na","Al","Si","3"
419,"SO$3 is an anhydride of:",,"H$2SO$3","H$2SO$4","H$2S$2O$7","None","2"
420,"If the empirical formula of the given compound is CH$2O and its molecular weight is 180 a.m.u., find the molecular formula of the given compound.",,"CH$3COOH","C$3H$6O$3","C$6H$12O$6","None","3"
421,"Mixture containing NaCl + Water, NaCl is separated by:",,"Distillation","Sublimation","Evaporation","Both (a) and ©","4"
422,"What is the nature of Sodium metal?",,"Malleable","Ductile","Both a and b","Soft","4"
423,"Permanent hardness of water is due to presence of:",,"Ca(HCO$3)$2","Mg(HCO$3)$2","CaCl$2","None","3"
432,"Isotopes have ---",,"same at. No","different no. of neutrons","same no. of neutrons","both a and b","4"
433,"General formula of cycloalkane is ---",,"CnH$2n+2","C$nH$2n","C$nH$2n+1","C$nH$2n-2","2"
434,"The general formula of diene is ---",,"C$nH$2n+2","C$nH$2n","C$nH$2n-2","C$nH$2n+1","3"
435,"Calomel is the ore of ---",,"Calcium","Cadmium","Chromium","Mercury","4"
436,"The mass of a neutron is of the order of ---",,"10#-23 Kg","10#-24 Kg","10#-26 Kg","10#-27 Kg","4"
437,"The maximum number of electrons are ---",,"71g in chlorine","120g in magnesium","127g in iodine","4g in hydrogen","2"
438,"Which is the electron deficient molecule?",,"CH$4","BF$3","NH$3","H$2O","2"
339,"A pressure cooker reduces cooking time because ---",,"the heat is more evenly distributed.","the higher pressure tenderizes the food.","the boiling point of water inside is elevated.","a large flame is used.","2"
340,"Under the same conditions 22g of carbondioxide will have the same volume as 22g of ---",,"dinitrogen oxide","nitrogen","carbon monoxide","nitrogen dioxide","1"
341,"Which of the follwing elements does not show the allotropy?",,"C","S$8","P$4","I$2","4"
342,"Which of the following will displace Br2 from an aqueaus solution of NaBr?",,"I$2","Cl$2","Cl#–","I3#–","2"
343,"The molecualr formula of Litharge is ---",,"PbS","ZnO","HgO","PbO",
344,"Which of the following is not organic compound?",,"CO$2","CH$4","CCl$4","CH$3CHO","1"
345,"Which one of the following is called aqua fortis?",,"HNO$3","H$2SO$4","HCl","H$2CO$3","1"
0,"Rutherford's atomic model is based on ---",,"?-rays scattering experiment","?-rays scattering experiment","?-rays scattering experiment","?-rays scattering experiment","1"
0,"Impurities present in the ore are called",,"Gangue","Slag","Flux","None","1"
0,"Al#+++, Mg#++, Na#+ are #---",," Isotopes","Isobars","Isoelectronic ions","Isotones","3"
0,"Which of the following is lightest radioactive element?",,"Protium"," Deuterium","Iridium","Vranium","3"
0,"Which one of the following is not possible?",,"2d","3p","4d","5f","1"
0,"ZnO is an amphoteric because ---",,"ZnO reacts with HCl only","ZnO reacts with both acid and alkali","ZnO does not react with both acid and alkali","None of these","2"
0,"Camphor can be separated from the mixture of sand and camphor by ---",,"Sublimation","Filtration","Distillation","Crystallisation","1"
0,"Which of the following is the non-metallic basic radical?",,"Cd#2+","Hg#++","NH#4+","H#+","2"
0,"Which of the following is not a true peroxide?",,"Na$2O$2","Na$2O$2","K$2O$2","BaO$2","2"
0,"The metals which can be used as anode is electrolysis of any kind of electrolyte is",,"Cu","Pt","Zn","Al","2"
0,"Which one of the following oxide gives oxygen gas when heated?",,"Na$2O","MgO","Ag$2O","CaO","3"
0,"What will be the colour of universal indicator when dipped in a solution having pH 4.5?",,"Red","Yellw","Light green","Greenish blue","3"
0,"Acid-base reaction is basically",,"Addition reaction","Decomposition reaction","Single displacement","Double displacement","4"
0,"Which of the following when treated with water gives H$2S gas?",," MgSO$4","MgSO$3","MgS","(NH$4) SO$4","3"
0,"Rock salt is the ore of",,"Na","Cs","Si","Fe","1"
0,"Which of the following glass is used to make gems?",,"Hard glass","Flint glass","Quartz glass","Pyrex glass","3"
0,"Brown coloured glass is prepared by heating simple glass with",," FeO","NiO","Cr$2O$3","MnO","1"
0,"The acid anhydride of H3PO4 is:",,"P$2O$3","P$2O$5","PO$4","PO$3","2"
0,"The size of following species in increasing order is correct is",,"I#-<I<I#+","I<#+I<I#-","I#+<I<I#-","I#-<I+<I#-","3"
0,"The correct ground state electronic configuration of chromium atom (At. no: 24) is:",,"[Ar] 3d#5 4s#1","[Ar] 3d6s#2","[ar]3d#6s#6","[Ar] 4d#54s#1","1"
0,"The example of reversible reaction is the formation of:",,"NH$3 from N$2+H$2","HCl from H$2+Cl$2","NaCl by neutralization","None","1"
0,"Which of the following is incorrect statement?",,"All the atoms of same element are alike","Atoms of same isotopes are alike",,,"1"
0,"Hydrogen is adsorbed by Pt, Pd to give solid gas solution is known as:",,"emulsion","occlusion","effusion","diazotization","2"
0,"The relative abundance of two isotopes of At wt 85 and 87 is 75% and 25% respectively. The accurate atomic weight of the element is:",,"75.5","85.5","87.5","86","2"
0,"Calomel is:",,"HgCl$2","Hg$2Cl$2","KCl","CaCl$2","2"
0,"M shell has --- orbitals.",,"2","6","9","16","3"
0,"The percentage of nitrogen in Urea is:",,"23%","18%","46%","28%","3"
0,":",,,,,,
0,,,,,,,
0,,,,,,,
0,,,,,,,
0,,,,,,,
0,,,,,,,
0,,,,,,,
0,,,,,,,
0,,,,,".",,
0,,,,,,,
424,"Molecular formula of Lunar Caustic is:",,"NaOH","KOH","AgNO$3","AgCl","3"
425,"pH of distilled water is:",,"4","7","10","None","2"
426,"AgNO$3 + NaCl ? AgCl + NaNO$3 is the example of:",,"Single displacement","Double displacement","Precipitation","Both b and c","4"
427,"The ratio of Nitrogen and Hydrogen in Ammonia by volume is:",,"1:14","3:1","1:3","None","3"
428,"Which of these turn blue litmus paper into real?",,"Na$2CO$3","NaOH","FeCl$3","KCl","3"
429,"Example of Alkali metal is:",,"Na","Ca","Sr","All of them","1"
430,"Which of the following is Lewis Acid?",,"HCl","H$2SO$4","CaO","AlCl$3","4"
431,"Which of the following is true about transitional elements?",,"They lie in d-block","They have variable valency","They have coloured ions","All of them","2"
432,"Temporary hardness of water is due to presence of:",,"CaCl$2","MgSO$4","Mg(HCO$3)$2","None","3"
433,"Which one of the following is metalloid?",,"F","Sb","Ba","Ni","2"
434,"General formula of soap is:",,"R COONa","(R COO)Mg","(R COO)Ca","None","1"
435,"General formula of alkyl group is:",,"CnH$2n+2","CnH$2n+1","CnH$2n","CnH$2n-2","2"
436,"How many gram of oxygen is present in 36gram of water?",,"16gram","32gram","8gram","None","2"
437,"Molecular formula of Litharge is",,"PbS","Pb(NO$3)$2","PbO","None","3"
438,"Which of these are neutral salt?",,"NaCl","NaNO$3","Na$2SO$4","All of them","4"
439,"Total number of groups in modern long periodic table are:",,"18","9","7","16","1"
440,"Blood is example of",,"True solution","Colloidal Solution","Suspension","None","2"
441,"Molecular formula of urea fertilizer is:",,"(NH$4)$2.SO$4","NH$4NO$3","(NH$4)$3.PO$4","CO(NH$2)$2","4"
442,"Atoms of the same element which have same atomic number but different atomic mass are known as:",,"isotones","isobars","isotopes","none","3"
443,"What happens when silver is treated with dil hydrochloric acid?",,"Silver chloride id formed","Hydrogen gas is evolved","Oxygen gas is evolved.","It does not react with dil HCl.","4"
444,"Father of chemistry is:",,"Lavosier","Berzelius","Dalton","None","1"
445,"The composition of bronze is:",,"Cu + Zn","Cu + Zn + Ni","Cu + Sn","None","3"
446,"What is the M.F. of Sodium metaluminate?",,"NaAlO$2","Na$3AlO$3","AlCl$3","Na$2AlO$2","1"
447,"When steam is passed over heated Iron, we get:",,"FeO + H$2","Fe$3O$4 + H$2","Fe$2O$3 + H$2","None","2"
448,"Which of the following number is Avogadro’s Number?",,"6.023 × 10#25","6.023 × 10#-23","6.023 × 10#23","None","3"
449,"An 8g sample of oxygen contains the same number of atoms as 16 g of element X. What is the relative atomic mass of X?",,"4","8","16","32","4"
450,"Which of the following element is the most reactive?",,"H","Na","K","Li","3"
451,"In which electrolyte would a carbon cathode increase in mass during electrolysis?",,"aq. Copper (i) sulphate","concentrated hydrochloric acid","concentrated aq. Sodium chloride","dilute sulphuric acid","1"
452,"The secondary cell that is generally used in out vehicle is:",,"Nickel Cadmium cell","Lead Acid cell","Platinum nickel cell","Lechlanche cell","2"
453,"After acidification with dilute nitric acid, a colorless solution of X reacts with aq. Silver nitrate to give a white precipitate. What could X be?",,"calcium iodide.","Lead (II) chloride","Lead (II) iodide","Sodium chloride","4"
454,"Which statement about an element which has seven outer electrons in its atoms, is correct?",,"it is always mono atomic","it forms a electrovalent compound with hydrogen","it forms a negative ion","it forms covalent compounds with group I elements","3"
455,"The ion XH$4+ is a action radical. To which group in the periodic table does X belong to?",,"II","III","IV","V","4"
456,"Molten cryolite, Na$3AlF6, is used in the extraction of aluminium. Why is cryolite used?",,"It acts as a catalyst","It dissolves aluminium oxide","It increases the purity of the aluminium","It removes impurities as slag","2"
457,"Which of the following processes does not result in the formation of both carbon dioxide and water?",,"addition of a dilute acid to a carbonate","burning ethanol","burning methane","heating crystals of anhydrous sodium carbonate","4"
458,"Which fertilizer provides the most nitrogen per mole?",,"NH$4NO$3","NaNO$3","(NH$4)$3PO$4","(NH$4)$2SO$4","3"
459,"Which of the following is not a use for chlorine?",,"sterilizing water","making domestic bleaches","making table salt","manufacturing plastics","3"
460,"Which ion is present in the highest concentration in a 2 mol /dm3 aq. Solution of sodium sulphate?",,"the hydrogen ion, H$+","the hydroxide ion, OH$-","the sodium ion, Na$+","the sulphate ion , SO$42$-","1"
461,"The ionic equation for a reaction is shown below
Ba2+ + SO42- ? BaSO¬¬¬4
Methane is used as a fuel. What property is essential for this use?",,"it is odourless","it burns exothermically","it is a gas","it has a low boiling point","2"
462,"Methane is used as a fuel. What property is essential for this use?",,"it is odourless","it burns exothermically","it is a gas","it has a low boiling point","4"
463,"Which natural resource is being depleted by the manufacture of plastics?",,"air","fossil fuels","metal ores","water","4"
424,"What is CH$4O?",,"Alkene","Alkane","Alcohol","Carbohydrat","3"
425,"Basic property of separation of metals is ---",,"Mass","Volume","Density","Melting Point","4"
426,"F, O, Cl, N what elements is missing hare?",,"Mg","Na","NaCl","C","5"
427,"If the formula of an Aluminium compound is AlX, which of the following is true?",,"(NH$4)$3X","NH$4X","NH$4X$2","NH4X$3","1"
428,"What is the exact weight of one atom of hydrogen?",,"1 gm","1 amu","1.008 g","1.008 amu","4"
429,"When amonium salt is heated with alkali, we get gas ---",,"N$2","NH$2","N$2O","NO$2","2"
430,"When sulphur dioxide reacts with base, what is formed?",," Sulphite","Sulphate","Sulphur","Sulphide","1"
431,"Which of the following is impure?",,"Bauxite","Water","NaCl","Magnetium oxide","1"
464,"The soap with the formula C$17H$35COONa is:",,"acid","an alcohol","an ester","a salt","3"
465,"A student added aqueous sodium hydroxide to a salt X. On warming, a gas was evolved which turned litmus blue. Which ion was present in X?",,"Cl-","H+","NH$4+","NO3-","1"
466,"When aq. ethanoic acid was added to ethanol, a sweet smelling liquid was produced. What type of reaction occurred?",,"esterification","hydrolysis","oxidation","reduction","4"
467,"Water containing a little dilute sulphuric acid was electrolysed, using carbon electrodes. If 20 cm$3 of oxygen were produced, what was the volume of hydrogen produced?",,"10cm#3","20 cm#3","30 cm#3","40 cm#3","4"
468,"A neutral atom of sodium, Na, has 11 electrons, 11 protons and 12 neutrons. Which symbol represents its nuclide?",,"11Na#11","11Na#12","11Na#22","11Na#23","3"
469,"Which substance is a reducing agent in the production of iron?",,"air","carbon dioxide","carbon monoxide","limestone","3"
470,"An atom of element X is represented by 3X#7. Which statement about an atom of X is correct?",,"It is in Group III of the Periodic Table","It is in Group VII of the Periodic Table","The total number of protons and electrons is 6","The total number of protons and neutrons is 10.","3"
471,"Which statement about the graphite is not true?",,"it burns to form carbon dioxide","it is a carbon compound","it is a macromolecule.","it is used as lubricant.","4"
472,"In which pair of substances, does each have a giant molecular structure?",,"diamond, iodine","diamond, silica (sand)","iodine, methane","methane, silica (sand)","3"
473,"In which substance is each carbon atom covalently bonded to only three other atoms?",,"carbon dioxide","diamond","graphite","methane","3"
473,"Which of the following, when added to water, makes a solution that is a good conductor of electricity?",,"calcium carbonate","copper","ethanol","sodium hydroxide","4"
474,"The pH of an aqueous solution of hydrochloric acid is 2. What will be the pH of the acid after the addition of 10 g of sodium chloride?",,"1","2","7","9","2"
475,"Which of the following is the best method of obtaining pure water from ink?",,"chromatography","distillation","filtration","freezing","2"
476,"Which ions must be present in the fertilizer?",,"NH$4+ and NO#3-","NH$4+ and Fe$2+","Fe#2+ and SO$4#2-","Fe#3+ and NO#3-","1"
478,"A gas Y does not burn in air and has no effect on moist indicator paper. What could be Y?",,"Ammonia","Carbon dioxide","Hydrogen","Nitrogen","4"
479,"An element X has two isotopes. How does #238X isotope differ from 235X isotope?",,"It has 3 more protons and 3 more electrons","It has 3 more protons, but no more electrons.","It has 3 more neutrons and 3 more electrons","It has 3 more neutrons, but no more electrons","4"
479,"How many electrons are present in N shell of Cu+ ?",,"0","1","2","3","1"
480,"No single acid can dissolve gold. It dissolves in aqua to give auric chloride. What is aqua regia?",,"conc. HNO$3 and conc. HCI in the ratio of 3:1","conc. HNO$3 and conc. H$2SO4 in the ratio of 1:3","conc. HNO$3 and conc. HCI in the ratio of 1:3","conc. H$2SO$4 and conc. HCI in the ratio of 1:3","3"
481,"Diamond is the hardest substance in which each carbon atom is bonded with four other carbon atoms. Diamond is:",,"an organic compound","a covalent compound","an ionic compound","an element","4"
482,"Magnetite is an ore of",,"Manganese","Copper","Iron","Magnesium","3"
483,"Nitrogen is prepared by heating:",,"Ammonium nitrat","Ammonium nitrite","Mixture of ammonium chloride and sodium nitrate","Conc. HNO$3","2"
484,"An element X in-group I of the periodic table reacts with an element Y in group VI of the periodic table to from a compound with formula:",,"XY","XY$2","XY$3","X$2Y","4"
485,"Nitrogen is prepared by heating:",,"Nitric acid","Ammonium chloride","Ammonium nitrite.","Solution of ammonium chloride and sodium nitrate","3"
486,"What is water?",,"Covalent compound","An electrovalent compound","A coordinate covalent compound","None of the above","1"
487,"DDT is an example of:",,"Fertilizer","Plastic","Fibre","Insecticide","4"
488,"Elements present in group I are called:",,"alkaline earth metals","alkali metals","reactive non metals","noble gases","2"
489,"Latin name of mercury is:",,"Natrium","Hydrargyrum","Kalium","Ferrum","2"
490,"When a burning piece of magnesium is introduced in a jar containing carbon dioxide, the product formed are:",,"magnesium carbonate and water","magnesium oxide and carbon","magnesium carbonate and carbon","magnesium carbonate only","2"
491,"Carbonic acid is prepared by the action of:",,"CO$2 and H$2O","CO and H$2O","CO$2 and Ca(OH)$2","CO and H$2SO$4","1"
492,"The reaction Zn + H$2SO$4 ? ZnSO$4 + H$2 is an example of:",,"displacement reaction","combination reaction","Decomposition reaction","Acid –Base reaction","1"
493,"The solubility of salt in wager is 40 at 25ºC. The amount of water required to dissolve 120g at the same temperature is:",,"3 kg","300g","400g","30g","2"
494,"The molecular formula of quick lime is:",,"CaCO$3","KOH","Na$2CO$3","CaO","4"
495,"The number of electrons in Mg++ is:",,"12","14","10","2","3"
496,"All alkalis are hydroxide of metals except:",,"Caustic potash","magnesium hydroxide","Slaked lime","ammonium hydroxide","4"
1,"Bakelite plastic is example of:",,"Thermoplastic","Thermosetting","a and b","None","2"
2,"From the given mixture of sand + iodine, Iodine is separated by:",,"Distillation","Sublimation","Crystallization","None","2"
3,"Black ink is separated into different colour by:",,"Sublimation","Chromatography","Distillation","None","2"
4,"Peptic ulcer patient is treated with",,"Al(OH)$3","Mg(OH)$2","a and b","None","3"
5,"If wasp bites, we use generally:",,"vinegar","calamine lotion","Hydrochloric acid","None","1"
6,"The example of group vth of the periodic table is:",,"sodium","aluminum","oxygen","nitrogen","4"
7,"If honey bee bites, we use:",,"calamine lotion","vinegar","caustic soda","None","1"
8,"Valency of phosphate is:",,"1","2"," 3","none","3"
9,"The M.F. of calamine lotion is:",,"ZnCO$3","ZnS","ZnCl$2","None","1"
10,"The subatomic particle of an atom, which has no charge is known as:",,"Proton","Neutron","Electron","None","2"
11,"If we go from top to bottom in the same group, the electro negativity of the element:",,"Increases","Decreases","No any change","None","2"
12,"The water which contain calcium bicarbonate and calcium chloride is:",,"Temporary","Permanent","a and b","None","3"
13,"If we go from left to right in the periodic table the acidic character of the element:",,"increases","decreases","no any change","None","1"
14,"If we go from left to right in the same period, the atomic radius of the element:",,"Increases","Decreases","No any change","None","2"
15,"Give example of one covalent compound formed in between Gr-I and Gr-IV.",,"NaCl","CH$4"," Na$2O","HCl","2"
16,"If sodium nitrite is heated with ammonium chloride, we get gas like:",,"NH$3","N$2","O$2","None","2"
17,"If slaked lime is heated with salammoniac, we get gas like:",,"NH$3","N$2","O42","None","1"
18,"If sodium perioxide is reacted with water, we get a gas like:",,"H$2","O$2","CO$2","None","2"
19,"Give example of one electrovalent compound formed in between Gr-I and Gr-VII is:",,"Na$2O","KCl","CaCl$2","None","2"
20,"If water contains calcium sulphate compound, hardness is separated by:",,"lime water","boiling","washing soda"," None","3"
21,"The molecular formula of galena is:",," ZnS","HgS","PbS","None","3"
22,"Carbon has valency of 4 in CH$4 and CO$2. Find the valency of carbon in C$2H$6.",,"1","2","3","4","4"
23,"The molecular formula of baking soda is:",,"Na$2 CO$3","CaCO$3","NaHCO$3","None","3"
24,"Diamond is example of:",,"Sedimentary","Igneous","Metamorphic","None","3"
25,"Galvanized iron is protected from rusting because it has a coating of:",,"Pb","Cu","Zn","None","3"
26,"Solubility curve of sodium chloride in water with rise of temperature:",,"Increased rapidly","Slightly increase","No any change in solubility","None","2"
27,"The molecular formula of rust is:",,"FeO","Fe$3O$4","Fe$2O$3.XH$2O","None","3"
28,"When potassium nitrate is heated, we get a gas, which is absorbed by alkaline pyrogallate solution is:",,"H$2","NH$3","O$2","None","3"
29,"The smallest particle of matter which, generally participates in chemical resection but has no free of existence is known as:",,"atom","molecule","element","none","1"
30,"The chemical formula of Pyrex glass is:",,"Aluminum silicate","Aluminum boron silicate","Boron silicate","None","3"
31,"Thickening of window glass after sometime is known as:",,"Hydration","Hygroscopy","Super cooling","None","3"
32,"Lunar eclipse takes place:",,"Every moon day","Moon day","New moon day","None","4"
33,"Hottest part of the earth is:",,"Crust","Mantle","Inner core","None","3"
34,"Protein is the example:",,"Natural polymer","Artificial","Man made","none","1"
35,"Blood is example of:",,"Colloidal solution","True solution","Suspension","None","1"
36,"Particle size of solute in true solution is:",,"100 – 1000 A#o","1 – 10 A#o","4000 – 7000 A#o","None","2"
37,"If the solubility of compound is 25 at 30#oC, find the salt deposited from 50 gram of its saturated solution at 30#oC is:",,"100","10","15","150","2"
38,"% of silica in ordinary glass:",,"15%","25%","50%","None","3"
39,"Formalin is used as:",,"Insecticides","Pesticide","Antiseptic","None","3"
40,"B.H.C is used as:",,"antiseptic","disinfectant","insecticide","None","3"
41,"The gas which is neither supporter of combustion nor combustible in nature is:",,"N$2","O$2","H$2","None","1"
42,"The aqueous solution of gas which turns red to blue litmus paper is:",,"CO$2","O$2","NH$3","None","3"
43,"The gas which is collected in gas jar by down ward displacement of water is known as:",,"CO$2","N$2","CO","Both b and c","4"
44,"The gas which is collected in gas jar by upward displacement of air is:",,"NH$3","CO$2","CO","None","2"
45,"PVC is example of:",,"Natural polymer","Synthetic polymer","a and b","None","2"
46,"When sodium metal is treated with water, we get a gas, which is adsorbed by palladium metal is:",,"O$2","CO$2","H$2","None","3"
47,"The father of chemistry is:",,"Dalton","Lavoiser","Rutherford","none","2"
48,"The nucleus of atom is discovered by:",,"Avogadro","Rutherford","Dalton","None","2"
49,"The chemical properties of the elements are determined by:",,"atomic number","atomic mass","neutron","None","1"
50,"The molecule term is given by:",,"Dalton","Rutherford","Avogadro","None","3"
51,"Which of the following compound is not organic compound?",,"CO$2","CO","CH$4","Both a and b","4"
52,"Which of the following chemical reaction is an example of decomposition reaction?",,"2Na + Cl$2 ? 2NaCl","N$2 + 3H$2 ? 2NH$3","2AgBr ? 2Ag + Br$2","Both a & c","3"
53,"What happens when sodium acetate is treated with sodium hydroxide in presence of calciumoxide?",,"Ethane gas is formed","Propane gas is formed","Methane gas is formed","All of the above","3"
54,"Which of the following compound is used as anaesthesia?",,"CCl$4","CHCl$3","CH$3Cl","CH$2Cl$2","4"
55,"Which of the following gas in biogas?",,"C$2H$6","CH$4","CO$2","CO","2"
56,"What is the M.F. of acetylene?",,"C$2H$4"," C$2H$2","C$2H$6","None of above","2"
57,"What is the M.F of ethanol?",,"CH$3OH","C$2H$5OH","C$3H$7OH","C$4H$9OH","2"
58,"Which of the following compound is called glycol?",,"CH$2OHCH$2OH","CH$2OHCHOHCH#2OH","C$2H$5OH","C$4H$9OH","1"
59,"What is the boiling point of alcohol?",,"78.6#oC","99#oC","80#oC","81#oC","1"
60,"Which of the following compound is soluble in water?",,"Ethane","Propane","Alcohol","Ether","3"
61,"What is the functional group of ether?",,"-OH","-O-","-NH$2","-CO","2"
62,"Which of the following compound is used in thermometer?",,"Ether","Alcohol","Potassium chloride","Sodium hydroxide","2"
63,"Which of the following compound is unsaturated compound?",,"CH$4","C$2H$6","C$3H$8","C$2H$4","4"
64,"Which of the following compound is iodoform?",,"CHI$3","CHBr$3","C$3H$8","C$2H$4","1"
65,"What is the general formula of alkyne?",,"CnH$2n-2","CnH$2n+2","CnH$2n","CnH$2n+1","1"
66,"Which of the following bond are found in alcohol?",,"Electrovalent bond","Covalent bond","Hydrogen bond","b and c","4"
67,"What is the M.F. of dimethyl ether?",,"C$2H$5OC$2H$5","CH$3OC$2H$5","CH$3OCH$3","None of the above","3"
68,"What is the boiling point of ether?",,"38#oC","35#oC","37#oC","36#oC","2"
69,"How many blocks are there in a periodic table?",,"1","2","5","4","4"
70,"Who introduced the modern periodic table?",,"John Newland","Lothar Meyer","Henery Moseley","John Dalton","3"
71,"How many elements are there in a Lanthanides series?",,"13","14","15","16","2"
72,"In which block of the periodic table should aluminum be placed?",,"s","p","d","f","2"
73,"How many elements are there in actinides series?",,"14","15","16","None of above","1"
74,"In which group of the periodic table should calcium be placed?",,"I-A","III-A","II-A","IV-A","3"
75,"How many valance electrons are there in an argon atom?",,"7","8","9","10","2"
76,"When, 20 gram of saturated solution is cooled from 60oC to 45oC, find the salt deposited. If the solubility of given salt at 60oC and 45oC are 45 and 40 respectively.",,"3 gram","4 gram","1 gram"," 0.68 gram","4"
77,"Which of the following element is the most reactive?",,"H","Li","K","Na","3"
78,"Which block of the periodic table should actinides group be placed?",,"s","p","d","f","4"
79,"Which of the following metal is called alkaline earth metal?",,"Li","Na","Ca","Al","3"
80,"In which group of the periodic table should halogen group be placed?",,"I-A","VI-A","III-A","VII-A","4"
81,"Which of the following element is also called electropositive element?",,"16","17","18","20","4"
82,"How many electrons are there in Ca++ ion?",,"13","20","11","18","4"
83,"Which of the following gas is also called noble gas?",,"O$2","Ne","Ar","Both b & c","4"
84,"What is the other name of lanthanides and actinides series?",,"Alkaline metal","Alkaline earth metal","Rare-earth element","None of the above","3"
85,"What is the gram molecular weight of oxygen molecule?",,"30 gram","32 gram","34 gram","40 gram","2"
86,"How many molecules are there in 1 mole of carbon-dioxide gas?",,"6.02x10#23 molecules","6.02x10#27 molecules","6.02x10#30 molecules","6.02x10#-32 molecules","1"
87,"Which of the following chemical reaction is not balanced?",,"C + O$2 ? CO$2","Cu + O$2 ? CuO","Zn + H$2SO$4 ? ZnSO$4 + H$2","CaCO$3 ? CaO + CO$2","2"
88,"Which of the following number is Avogadro’s number?",,"6.02x10#24","6.023x10#23","6.02x10#25","6.02x10#-23","2"
89,"Which of the following catalyst is used for the manufacturing of ammonia gas?",,"Ni","Fe/Mo","Cu","Sn","2"
90,"Which of the following gas is monatomic gas?",,"Cl$2","F$2","N$2","Xe","4"
91,"Which of the following chemical reaction is an example of acid-base reaction?",,"H$2SO$4 + CaO ? CaSO$4 + H$2Oz","2Zn + O$2 ? 2ZnO","2KClO$3 ? 2KCl + 3O$2","CaCO$3 ? CaO + CO$2","1"
92,"Tooth Paste is the example of:",,"colloids","solution","suspension","all of the above","1"
93,"In the given mixture of sand + camphor, camphor is separated by:",,"distillation process","sublimation process","evaporation process","decantation process","2"
94,"If the solubility of given compound at 30#oC is 40. Find the weight of solvent when 80 gram its saturated solution is heated at 30oC.",,"9.300 gram","22.8 gram","500 gram","600 gram","2"
95,"According to duplet rule, how many electrons are there in the valance shell?",,"3","4","5","2","4"
96,"Aqueous solution containing gas is example of:",,"brass","coca cola","salt solution","none of the above","2"
97,"For the solubility of given compound amount of solvent necessary is:",,"250 gram","100 gram","150 gram","105 gram","2"
98,"Generally, when the saturated solution is heated it becomes:",,"unsaturated","saturated","super saturated","none","1"
99,"From the given solution of NaCl + water, NaCl is separated by:",,"filtration","evaporation","sublimation","decantation","2"
100,"What happens when silver is treated with dil. Hydrochloric acid?",,"Silver chloride is formed","Hydrogen gas is evolved","Oxygen gas is evolved","It does not react with dill. Hydrochloric acid.","4"
101,"Mixture of alcohol and water is example of:",,"colloid","solution","suspension","all of the above","2"
102,"In which block of the periodic table should iron be placed?",,"s-block","p-block","f-block","d-block","4"
103,"Which of the following compound is called magnetic oxide of iron?",,"Fe$2O$3","Fe$3O$4","FeCO$3","FeO","2"
104,"What is the M.F. of sodium meta aluminate?",,"NaAlO$2","Na$3AlO$3","AlCl$3","NaCl","1"
105,"Which of the following is the At. No. of copper?",,"30","29","31","32","2"
106,"Which of the following is the ore of copper?",,"CuFeS$2","Cu$2S","CuCl$3","Both a & b","4"
107,"What is the specific density of the copper?",,"8","7.75","8.85","None of the above","3"
108,"Which of the following gas is evolved when coper is treated with conc. Sulphuric acid?",,"H$2S","SO$2","O$2","N$2","2"
109,"Which of the following metal is also called coinage metal?",,"Na","Li","Cu","Ca","3"
110,"Generally, ionic radius of cation decreases, due to:",,"decreased effective nuclear charge","increased effective nuclear charge","increased atomic number","none of the above","2"
111,"What is the M.F. of horn silver?",,"Ag$2S","(AgCu$2)$2S","AgCl","Ag","3"
112,"What is the specific density of gold?",,"20 gram/cm#3","19.3 gram/cm#3","21 gram/cm#3","24.3 gram/cm#3","2"
113,"Which of the following compound is used as a negative in a photography?",,"AgCl","AgI","AgBr","AgNO$3","3"
114,"What is the atomic wt. of gold",,"179","35","35.5","None","4"
115,"What is the M.F. of Auric chloride?",,"AuCl","AuBr$3","AuCl$3","AgBr.","3"
116,"% of oxygen in calcium oxide is:",,"28.4","56.8","60","None","1"
117,"Amalgam is:",,"an alloy","slag","flux","none","1"
118,"Slag is the product of:",,"Gangue","Gangue + Flux","Colloidal","None","2"
119,"The composition of brass is:",,"Cu + Sn","Cu + Zn","Cu + Hg","None","2"
120,"Which one of the following is true about transitional elements:",,"They have variable valency","They lie in d-block","They have coloured compounds","All of them","4"
121,"The composition of bronze is:",,"Cu + Zn","Cu + Zn + Ni","Cu + Sn","None","3"
122,"The composition of german silver is:",,"Cu + Zn","Cu + Sn","Cu + Zn + Ni","None","3"
123,"What is the M.F. of sodium zincate?",,"Na$2S","Na$2ZnO2","Na$2Z","None","2"
124,"What is the M.F. of gypsum?",,"Al$2O$3.SiO$2","CaSO$4.2H$2O","CaCO$3","All of the above","2"
125,"Which of the following glass is soluble in water?",,"Ordinary","Hard glass","Borosilicate glass","Water glass","4"
126,"Carbolic acid and formalin is reacted to each other, we get:",,"Polyethylene","Polyvinyl chloride","Bakelite plastic","None of the above","3"
127,"In the given example, which one is detergent?",,"Sodium stereate","Alkylbenzene sulphonate","DDT","Urea","2"
128,"Molecular formula of soap is:",,"C$17H$35COONa","SiO$2","AlCl$3","C$17H$35COOLi","1"
129,"P.V.C is the example of:",,"Thermoplastics","Thermosetting plastics","Both a and b","Non of the above","1"
130,"Atoms of the same element, which have same atomic number but different atomic mass are known as:",,"isobars","isotones","isotopes","None","3"
131,"In the given example, which is whole number?",,"Atomic mass","Atomic number"," Equivalent","None","2"
132,"Molecular formula of urea fertilizer is:",,"(NH$4)$2SO$4","CO(NH$2)$2","NH$4NO$3","KCl","2"
133,"Vital force theory was given by:",,"Dalton"," Lavoiser","Berzelius","None","3"
134,"Blood is the example of:",,"True solution","Colloidal","Suspension","None","2"
135,"Example of good conductor is:",,"Diamond","Coal","Graphite","None","3"
136,"Example of Metalloid is:",,"Be","Ge","As","All of them.","4"
137,"Example of normal element is:",,"K","Cu","Fe","None","1"
138,"Example of transitional element is:",,"Ca","Na","Cu","None","3"
139,"Phosphoric acid is used with hydrogen peroxide acts as:",,"–ve catalyst","+ve catalyst","Auto catalyst","None","1"
140,"MnO2 is used in the preparation of oxygen gas as:",,"+ve catalyst","–ve catalyst","Autocatalyst","None","1"

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Monday, May 12, 2014

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