Page 1 NEET FULL SYLLABUS TEST ---------------------------------------------- Space for Rough Work ---------------------------------------------- 1 PHYSICS 1. If momentum (P), area (A) and time (T) are taken to be fundamental quantities, then energy has the Dimensional formula (a) 1 1 1 [P A T ] ? (b) 2 1 1 [P A T ] (c) 1 1/2 1 [P A T ] ? (d) 1 1 2 [PA T ] ? 2. The bob of a simple pendulum is a spherical hollow ball filled with water. A plugged hole near the bottom of the oscillating bob gets suddenly unplugged. During observation, till water is coming out, the time period of oscillation would (a) remain unchanged (b) increase towards a saturation value (c) first increase and then decrease to the original value (d) first decrease and then increase to the original value 3. Two masses are connected by a string as shown in the figure over a frictionless pulley attached to a fixed wedge. The acceleration of the system is (a) 2 4 ms ? (b) 2 2 ms ? (c) zero (d) 2 9.8 ms ? 4. Two identical rectangular rods of metal of thermal resistance R, are welded end to end as shown in figure (i) and 10 J of heat flows through the rods in 2 min. How long would it take for 30 J of heat to flow through the rods if they are welded as shown in figure (ii) (a) 2 min (b) 1.5 min (c) 1 min (d) 4 min 5. Distance between the centers of two stars is 10a. The masses of these stars are M and 16M and their radii a and 2a respectively. A body of mass m is fired straight from the surface of the larger star towards the smaller star. The minimum initial speed for the body to reach the surface of smaller star is (a) 2 3 Gm a (b) 35 2 Gm a (c) 25 3 Gm a (d) 3 2 Gm a 6. A mild-steel wire of length 2L and cross-sectional area A is stretched, well within elastic limit, horizontally between two pillars,A mass m is suspended from the midpoint of the wire. Strain in the wire is (a) 2 2 2 x L (b) x L (c) 2 x L (d) 2 2 x L 7. Two point masses of 0.3 kg and 0.7 kg are fixed at the ends of a rod of length 1.4 m and of negligible mass. The rod is set rotating about an axis perpendicular to its length with a uniform angular speed. The point on the rod through which the axis should pass in order that the work required for rotation of the rod is minimum, is located at a distance of (a) 0.42 m from mass of 0.3 kg (b) 0.70 m from mass of 0.7 kg (c) 0.98 m from mass of 0.3 kg (d) 0.98 m from mass of 0.7 kg 8. A bob of mass m is suspended by a massless string of length I. The horizontal velocity v at position a is just sufficient to make it reach the point B. The angle ? at which the speed of the bob is half of that at A, satisfies (a) 4 ? ?? (b) 42 ?? ? ? ? (c) 24 ? ? ? ? ? ? (d) 3 4 ? ? ? ? ? 9. An insulated container containing n moles of monoatomic gas of molar mass m is moving with a velocity 0 . v If the container is suddenly stopped, find the changes in temperature (a) 2 0 3 mv R (b) 2 0 3 mv nR (c) 2 0 mnv R (d) 2 0 2 mv R ? Page 2 NEET FULL SYLLABUS TEST ---------------------------------------------- Space for Rough Work ---------------------------------------------- 1 PHYSICS 1. If momentum (P), area (A) and time (T) are taken to be fundamental quantities, then energy has the Dimensional formula (a) 1 1 1 [P A T ] ? (b) 2 1 1 [P A T ] (c) 1 1/2 1 [P A T ] ? (d) 1 1 2 [PA T ] ? 2. The bob of a simple pendulum is a spherical hollow ball filled with water. A plugged hole near the bottom of the oscillating bob gets suddenly unplugged. During observation, till water is coming out, the time period of oscillation would (a) remain unchanged (b) increase towards a saturation value (c) first increase and then decrease to the original value (d) first decrease and then increase to the original value 3. Two masses are connected by a string as shown in the figure over a frictionless pulley attached to a fixed wedge. The acceleration of the system is (a) 2 4 ms ? (b) 2 2 ms ? (c) zero (d) 2 9.8 ms ? 4. Two identical rectangular rods of metal of thermal resistance R, are welded end to end as shown in figure (i) and 10 J of heat flows through the rods in 2 min. How long would it take for 30 J of heat to flow through the rods if they are welded as shown in figure (ii) (a) 2 min (b) 1.5 min (c) 1 min (d) 4 min 5. Distance between the centers of two stars is 10a. The masses of these stars are M and 16M and their radii a and 2a respectively. A body of mass m is fired straight from the surface of the larger star towards the smaller star. The minimum initial speed for the body to reach the surface of smaller star is (a) 2 3 Gm a (b) 35 2 Gm a (c) 25 3 Gm a (d) 3 2 Gm a 6. A mild-steel wire of length 2L and cross-sectional area A is stretched, well within elastic limit, horizontally between two pillars,A mass m is suspended from the midpoint of the wire. Strain in the wire is (a) 2 2 2 x L (b) x L (c) 2 x L (d) 2 2 x L 7. Two point masses of 0.3 kg and 0.7 kg are fixed at the ends of a rod of length 1.4 m and of negligible mass. The rod is set rotating about an axis perpendicular to its length with a uniform angular speed. The point on the rod through which the axis should pass in order that the work required for rotation of the rod is minimum, is located at a distance of (a) 0.42 m from mass of 0.3 kg (b) 0.70 m from mass of 0.7 kg (c) 0.98 m from mass of 0.3 kg (d) 0.98 m from mass of 0.7 kg 8. A bob of mass m is suspended by a massless string of length I. The horizontal velocity v at position a is just sufficient to make it reach the point B. The angle ? at which the speed of the bob is half of that at A, satisfies (a) 4 ? ?? (b) 42 ?? ? ? ? (c) 24 ? ? ? ? ? ? (d) 3 4 ? ? ? ? ? 9. An insulated container containing n moles of monoatomic gas of molar mass m is moving with a velocity 0 . v If the container is suddenly stopped, find the changes in temperature (a) 2 0 3 mv R (b) 2 0 3 mv nR (c) 2 0 mnv R (d) 2 0 2 mv R ? NEET FULL SYLLABUS TEST 2 ----------------------------------------------- Space of Rough Work ---------------------------------------------- 10. An object of specific gravity ? is hung from a thin steel wire. The fundamental frequency for transverse standing waves in the wire is 300 Hz. The object is immersed in water so that one half of its volume is submerged. The new fundamental frequency in Hz is (a) 1/2 21 300 2 ?? ?? ?? ? ?? (b) 1/2 2 300 21 ?? ? ?? ?? ?? (c) 2 300 21 ?? ? ?? ?? ?? (d) 21 300 2 ?? ?? ?? ? ?? 11. A student uses a simple pendulum of exactly 1 m length to determine g, the acceleration due to gravity. He uses a stop watch with the least count of 1 s for this and records 40 s for 20 oscillations. For this observation, which of the following statements is true? (a) Error ?T in measuring T, the time period, is 0.02 seconds (b) Error ?T in measuring T, the time period, is 1 second (c) Percentage error in the determination of g is 5% (d) Percentage error in the determination of g is 2.5 12. The water flows from a tap of diameter 1.25 cm with a rate of 5 3 1 5 10 m s ?? ? . The density and coefficient of viscosity are 33 10 kg m and 3 10 ? Pa is respectively. The flow of water is (a) steady with Reynolds number 5100 (b) turbulent with Reynolds number 5100 (c) steady with Reynolds number 3900 (d) turbulent with Reynolds number 3900 13. A force F is applied at the top of a ring of mass M and radius R placed on a rough horizontal surface as shown in figure. Friction is sufficient to prevent slipping. The friction force acting on the ring is (a) 2 F towards right (b) 3 F towards left (c) 2 3 F towards right (d) zero 14. In refrigerator one removes heat from a lower temperature and deposits to the surroundings at a higher temperature. In this process, mechanical work has to be done, which is provided by an electric motor. If the motor is of 1 kW power, and heat is transferred from â€“3°C to 27°C, find the heat taken out of the refrigerator per second assuming its efficiency is 50% of a perfect heat engine. (a) 14 J (b) 12 J (c) 19 J (d) 20 J 15. Three points masses, each of mass m, are placed at the corners of an equilateral triangle of side ?? . Then the moment of inertia of this system about an axis along one of the side of the triangle is (a) 2 3ml (b) 2 ml (c) 2 3 m 4 l (d) 2 3 m 2 l 16. A physical quantity, 42 4 1/3 () ab Y cd ? has four observables a, b, c and d. The percentage error in a, b, c and d are 2%, 3%, 4% and 5% respectively the error in y will be (a) 6% (b) 11% (c) 12% (d) 22% 17. A smooth inclined plane of length L having inclination ? with the horizontal is inside a lift which is moving down with retardation a. The time taken by a body to slide down the inclined plane, from rest, will be (a) 2 ( )sin L ga ?? (b) 2 ( )sin L ga ?? (c) 2 sin L g ? (d) 2 sin L a ? 18. A body cools from 80°C to 64°C in 5 min and same body cools from 80°C to 52°C in 10 min, what is the temperature of the surrounding? (a) 24°C (b) 28°C (c) 22°C (d) 25°C 19. The change in potential energy when a body of mass m is raised to a height nR from Earthâ€˜s surface is (R = radius of the earth,g=acceleration due to gravity on surface of Earth) (a) ( 1) n mgR n ? (b) mgR (c) ( 1) n mgR n ? (d) 2 2 ( 1) n mgR n ? 20. An isolated particle of mass m is moving in a horizontal plane (x-y), along the x-axis, at a certain height above the ground. It suddenly explodes into two fragments of masses m/4 and 3m/4. An instant later, the smaller fragment is at 15 y ?? cm. The larger fragment at this instant is at (a) 5 y ?? cm (b) 20 y ?? (c) 5 y ?? cm (d) 20 y ?? cm 21. One gram of ice is mixed with one gram of steam. At thermal equilibrium the temperature of mixture is (a) 0°C (b) 100°C (c) 55°C (d) 80°C Page 3 NEET FULL SYLLABUS TEST ---------------------------------------------- Space for Rough Work ---------------------------------------------- 1 PHYSICS 1. If momentum (P), area (A) and time (T) are taken to be fundamental quantities, then energy has the Dimensional formula (a) 1 1 1 [P A T ] ? (b) 2 1 1 [P A T ] (c) 1 1/2 1 [P A T ] ? (d) 1 1 2 [PA T ] ? 2. The bob of a simple pendulum is a spherical hollow ball filled with water. A plugged hole near the bottom of the oscillating bob gets suddenly unplugged. During observation, till water is coming out, the time period of oscillation would (a) remain unchanged (b) increase towards a saturation value (c) first increase and then decrease to the original value (d) first decrease and then increase to the original value 3. Two masses are connected by a string as shown in the figure over a frictionless pulley attached to a fixed wedge. The acceleration of the system is (a) 2 4 ms ? (b) 2 2 ms ? (c) zero (d) 2 9.8 ms ? 4. Two identical rectangular rods of metal of thermal resistance R, are welded end to end as shown in figure (i) and 10 J of heat flows through the rods in 2 min. How long would it take for 30 J of heat to flow through the rods if they are welded as shown in figure (ii) (a) 2 min (b) 1.5 min (c) 1 min (d) 4 min 5. Distance between the centers of two stars is 10a. The masses of these stars are M and 16M and their radii a and 2a respectively. A body of mass m is fired straight from the surface of the larger star towards the smaller star. The minimum initial speed for the body to reach the surface of smaller star is (a) 2 3 Gm a (b) 35 2 Gm a (c) 25 3 Gm a (d) 3 2 Gm a 6. A mild-steel wire of length 2L and cross-sectional area A is stretched, well within elastic limit, horizontally between two pillars,A mass m is suspended from the midpoint of the wire. Strain in the wire is (a) 2 2 2 x L (b) x L (c) 2 x L (d) 2 2 x L 7. Two point masses of 0.3 kg and 0.7 kg are fixed at the ends of a rod of length 1.4 m and of negligible mass. The rod is set rotating about an axis perpendicular to its length with a uniform angular speed. The point on the rod through which the axis should pass in order that the work required for rotation of the rod is minimum, is located at a distance of (a) 0.42 m from mass of 0.3 kg (b) 0.70 m from mass of 0.7 kg (c) 0.98 m from mass of 0.3 kg (d) 0.98 m from mass of 0.7 kg 8. A bob of mass m is suspended by a massless string of length I. The horizontal velocity v at position a is just sufficient to make it reach the point B. The angle ? at which the speed of the bob is half of that at A, satisfies (a) 4 ? ?? (b) 42 ?? ? ? ? (c) 24 ? ? ? ? ? ? (d) 3 4 ? ? ? ? ? 9. An insulated container containing n moles of monoatomic gas of molar mass m is moving with a velocity 0 . v If the container is suddenly stopped, find the changes in temperature (a) 2 0 3 mv R (b) 2 0 3 mv nR (c) 2 0 mnv R (d) 2 0 2 mv R ? NEET FULL SYLLABUS TEST 2 ----------------------------------------------- Space of Rough Work ---------------------------------------------- 10. An object of specific gravity ? is hung from a thin steel wire. The fundamental frequency for transverse standing waves in the wire is 300 Hz. The object is immersed in water so that one half of its volume is submerged. The new fundamental frequency in Hz is (a) 1/2 21 300 2 ?? ?? ?? ? ?? (b) 1/2 2 300 21 ?? ? ?? ?? ?? (c) 2 300 21 ?? ? ?? ?? ?? (d) 21 300 2 ?? ?? ?? ? ?? 11. A student uses a simple pendulum of exactly 1 m length to determine g, the acceleration due to gravity. He uses a stop watch with the least count of 1 s for this and records 40 s for 20 oscillations. For this observation, which of the following statements is true? (a) Error ?T in measuring T, the time period, is 0.02 seconds (b) Error ?T in measuring T, the time period, is 1 second (c) Percentage error in the determination of g is 5% (d) Percentage error in the determination of g is 2.5 12. The water flows from a tap of diameter 1.25 cm with a rate of 5 3 1 5 10 m s ?? ? . The density and coefficient of viscosity are 33 10 kg m and 3 10 ? Pa is respectively. The flow of water is (a) steady with Reynolds number 5100 (b) turbulent with Reynolds number 5100 (c) steady with Reynolds number 3900 (d) turbulent with Reynolds number 3900 13. A force F is applied at the top of a ring of mass M and radius R placed on a rough horizontal surface as shown in figure. Friction is sufficient to prevent slipping. The friction force acting on the ring is (a) 2 F towards right (b) 3 F towards left (c) 2 3 F towards right (d) zero 14. In refrigerator one removes heat from a lower temperature and deposits to the surroundings at a higher temperature. In this process, mechanical work has to be done, which is provided by an electric motor. If the motor is of 1 kW power, and heat is transferred from â€“3°C to 27°C, find the heat taken out of the refrigerator per second assuming its efficiency is 50% of a perfect heat engine. (a) 14 J (b) 12 J (c) 19 J (d) 20 J 15. Three points masses, each of mass m, are placed at the corners of an equilateral triangle of side ?? . Then the moment of inertia of this system about an axis along one of the side of the triangle is (a) 2 3ml (b) 2 ml (c) 2 3 m 4 l (d) 2 3 m 2 l 16. A physical quantity, 42 4 1/3 () ab Y cd ? has four observables a, b, c and d. The percentage error in a, b, c and d are 2%, 3%, 4% and 5% respectively the error in y will be (a) 6% (b) 11% (c) 12% (d) 22% 17. A smooth inclined plane of length L having inclination ? with the horizontal is inside a lift which is moving down with retardation a. The time taken by a body to slide down the inclined plane, from rest, will be (a) 2 ( )sin L ga ?? (b) 2 ( )sin L ga ?? (c) 2 sin L g ? (d) 2 sin L a ? 18. A body cools from 80°C to 64°C in 5 min and same body cools from 80°C to 52°C in 10 min, what is the temperature of the surrounding? (a) 24°C (b) 28°C (c) 22°C (d) 25°C 19. The change in potential energy when a body of mass m is raised to a height nR from Earthâ€˜s surface is (R = radius of the earth,g=acceleration due to gravity on surface of Earth) (a) ( 1) n mgR n ? (b) mgR (c) ( 1) n mgR n ? (d) 2 2 ( 1) n mgR n ? 20. An isolated particle of mass m is moving in a horizontal plane (x-y), along the x-axis, at a certain height above the ground. It suddenly explodes into two fragments of masses m/4 and 3m/4. An instant later, the smaller fragment is at 15 y ?? cm. The larger fragment at this instant is at (a) 5 y ?? cm (b) 20 y ?? (c) 5 y ?? cm (d) 20 y ?? cm 21. One gram of ice is mixed with one gram of steam. At thermal equilibrium the temperature of mixture is (a) 0°C (b) 100°C (c) 55°C (d) 80°C NEET FULL SYLLABUS TEST ---------------------------------------------- Space for Rough Work ---------------------------------------------- 3 22. A block of mass 0.50 kg is moving with a speed of 1 2.0 ns ? on a smooth surface. It strikes another stationary block of mass 1.0 kg and then move together as a single body. The energy loss during the collision is (a) 0.16 J (b) 1.00 J (c) 0.67 J (d) 0.34 J 23. A boat crosses a river from port A to port B, which are just on the opposite side. The speed of the water is W v and that of boat is B v relative to water. Assume 2. BW vv ? What is the time taken by the boat, if it has to cross the river directly on the AB line? [D=width of river] (a) 2 3 B D v (b) 3 2 B D v (c) 2 B D v (d) 2 B D v 24. A charged particle of mass m and charge q is released from rest in an electric field of constant magnitude E. The kinetic energy of the particle after time t is (a) 2 2 2 2 Eqt m (b) 22 2Et qm (c) 2 Eqm t (d) 2 2 2 qm t ? 25. The intensity of magnetic field at point X on the axis of a small magnet is equal to the field intensity at another point y on its equatorial axis. The ratio of X and Y from the centre of the magnet will be (a) 3 2 ? (b) 1/3 (2) ? (c) 3 2 (d) 1/3 2 26. Two capacitors of 25 µF and 100 µF are connected in series to a source of 120 V. Keeping their charges unchanged, they are separated and connected in parallel to each other. Find out energy loss in the process. (a) 5.2 J (b) 52 J (c) 50.2 J (d) 0.052 J 27. The steady state current in a 2 O resistor when the internal resistance of the battery is negligible and the capacitance of the condenser is 0.1 µF is (a) 0.6 A (b) 0.9 A (c) 1.5 A (d) 0.3 A 28. In an experiment, a magnet with its magnetic moment along the axis of a circular coil and directed towards the coil, is withdrawn away from the coil and parallel to itself. The current in the coil, as seen by the withdrawing magnet, is (a) zero (b) clockwise (c) anticlockwise (d) first (a) then (b) 29. A luminous object is placed at a distance of 30 cm from the convex lens of focal length 20cm. On the other side of the lens, at what distance from the lens a convex mirror of radius of curvature 10 cm be placed in order to have an inverted image of the object coinciding with image formed by lens? (a) 12 cm (b) 30 cm (c) 50 cm (d) 60 cm 30. Two slits separated by a distance of 1 mm are illuminated with red light of wavelength 7 6.5 10 ? ? meter. The interference fringes are observed on a screen placed one meter from the slits. The distance between the third dark fringe and fifth bright fringe (excluding central bright)on the same side of center is equal to (a) 0.65 mm (b) 1.63 mm (c) 3.25 mm (d) 4.8 mm 31. An electric bulb is marked 100 W, 230 V. If the supply voltage drops to 115 V, what is the heat and light energy produced by the bulb in 20 min? (a) 10 kJ (b) 15 kJ (c) 20 kJ (d) 30 kJ 32. A resistor R and 2 µF capacitor in series are connected through a 200 V direct supply. Across the capacitor is a neon bulb that lights up at 120 V. Find the value of R to make the bulb light up 5 s after the switch has been closed. (Take 10 log (2.5) 0.4) ? (a) 5 1.7 10 ?? (b) 6 2.7 10 ?? (c) 7 3.3 10 ?? (d) 4 1.3 10 ?? 33. A coil of resistance 400 ? is placed in a magnetic field. If the magnetic flux (wb) ? linked with the coil varies with time t(s) as 2 50 4. t ? ? ? The induced current in the coil at t2 ? s is (a) 0.5 A (b) 0.1 A (c) 2 A (d) 1 A 34. An electromagnetic wave of frequency 3 MHz passes from vacuum into a dielectric medium with permittivity 4 r ?? and 1, r ?? then (a) the wavelength and frequency both remain unchanged (b) the wavelength is doubled and the frequency remains unchanged (c) the wavelength is doubled and the frequency becomes half (d) the wavelength is halved and the frequency remains unchanged. Page 4 NEET FULL SYLLABUS TEST ---------------------------------------------- Space for Rough Work ---------------------------------------------- 1 PHYSICS 1. If momentum (P), area (A) and time (T) are taken to be fundamental quantities, then energy has the Dimensional formula (a) 1 1 1 [P A T ] ? (b) 2 1 1 [P A T ] (c) 1 1/2 1 [P A T ] ? (d) 1 1 2 [PA T ] ? 2. The bob of a simple pendulum is a spherical hollow ball filled with water. A plugged hole near the bottom of the oscillating bob gets suddenly unplugged. During observation, till water is coming out, the time period of oscillation would (a) remain unchanged (b) increase towards a saturation value (c) first increase and then decrease to the original value (d) first decrease and then increase to the original value 3. Two masses are connected by a string as shown in the figure over a frictionless pulley attached to a fixed wedge. The acceleration of the system is (a) 2 4 ms ? (b) 2 2 ms ? (c) zero (d) 2 9.8 ms ? 4. Two identical rectangular rods of metal of thermal resistance R, are welded end to end as shown in figure (i) and 10 J of heat flows through the rods in 2 min. How long would it take for 30 J of heat to flow through the rods if they are welded as shown in figure (ii) (a) 2 min (b) 1.5 min (c) 1 min (d) 4 min 5. Distance between the centers of two stars is 10a. The masses of these stars are M and 16M and their radii a and 2a respectively. A body of mass m is fired straight from the surface of the larger star towards the smaller star. The minimum initial speed for the body to reach the surface of smaller star is (a) 2 3 Gm a (b) 35 2 Gm a (c) 25 3 Gm a (d) 3 2 Gm a 6. A mild-steel wire of length 2L and cross-sectional area A is stretched, well within elastic limit, horizontally between two pillars,A mass m is suspended from the midpoint of the wire. Strain in the wire is (a) 2 2 2 x L (b) x L (c) 2 x L (d) 2 2 x L 7. Two point masses of 0.3 kg and 0.7 kg are fixed at the ends of a rod of length 1.4 m and of negligible mass. The rod is set rotating about an axis perpendicular to its length with a uniform angular speed. The point on the rod through which the axis should pass in order that the work required for rotation of the rod is minimum, is located at a distance of (a) 0.42 m from mass of 0.3 kg (b) 0.70 m from mass of 0.7 kg (c) 0.98 m from mass of 0.3 kg (d) 0.98 m from mass of 0.7 kg 8. A bob of mass m is suspended by a massless string of length I. The horizontal velocity v at position a is just sufficient to make it reach the point B. The angle ? at which the speed of the bob is half of that at A, satisfies (a) 4 ? ?? (b) 42 ?? ? ? ? (c) 24 ? ? ? ? ? ? (d) 3 4 ? ? ? ? ? 9. An insulated container containing n moles of monoatomic gas of molar mass m is moving with a velocity 0 . v If the container is suddenly stopped, find the changes in temperature (a) 2 0 3 mv R (b) 2 0 3 mv nR (c) 2 0 mnv R (d) 2 0 2 mv R ? NEET FULL SYLLABUS TEST 2 ----------------------------------------------- Space of Rough Work ---------------------------------------------- 10. An object of specific gravity ? is hung from a thin steel wire. The fundamental frequency for transverse standing waves in the wire is 300 Hz. The object is immersed in water so that one half of its volume is submerged. The new fundamental frequency in Hz is (a) 1/2 21 300 2 ?? ?? ?? ? ?? (b) 1/2 2 300 21 ?? ? ?? ?? ?? (c) 2 300 21 ?? ? ?? ?? ?? (d) 21 300 2 ?? ?? ?? ? ?? 11. A student uses a simple pendulum of exactly 1 m length to determine g, the acceleration due to gravity. He uses a stop watch with the least count of 1 s for this and records 40 s for 20 oscillations. For this observation, which of the following statements is true? (a) Error ?T in measuring T, the time period, is 0.02 seconds (b) Error ?T in measuring T, the time period, is 1 second (c) Percentage error in the determination of g is 5% (d) Percentage error in the determination of g is 2.5 12. The water flows from a tap of diameter 1.25 cm with a rate of 5 3 1 5 10 m s ?? ? . The density and coefficient of viscosity are 33 10 kg m and 3 10 ? Pa is respectively. The flow of water is (a) steady with Reynolds number 5100 (b) turbulent with Reynolds number 5100 (c) steady with Reynolds number 3900 (d) turbulent with Reynolds number 3900 13. A force F is applied at the top of a ring of mass M and radius R placed on a rough horizontal surface as shown in figure. Friction is sufficient to prevent slipping. The friction force acting on the ring is (a) 2 F towards right (b) 3 F towards left (c) 2 3 F towards right (d) zero 14. In refrigerator one removes heat from a lower temperature and deposits to the surroundings at a higher temperature. In this process, mechanical work has to be done, which is provided by an electric motor. If the motor is of 1 kW power, and heat is transferred from â€“3°C to 27°C, find the heat taken out of the refrigerator per second assuming its efficiency is 50% of a perfect heat engine. (a) 14 J (b) 12 J (c) 19 J (d) 20 J 15. Three points masses, each of mass m, are placed at the corners of an equilateral triangle of side ?? . Then the moment of inertia of this system about an axis along one of the side of the triangle is (a) 2 3ml (b) 2 ml (c) 2 3 m 4 l (d) 2 3 m 2 l 16. A physical quantity, 42 4 1/3 () ab Y cd ? has four observables a, b, c and d. The percentage error in a, b, c and d are 2%, 3%, 4% and 5% respectively the error in y will be (a) 6% (b) 11% (c) 12% (d) 22% 17. A smooth inclined plane of length L having inclination ? with the horizontal is inside a lift which is moving down with retardation a. The time taken by a body to slide down the inclined plane, from rest, will be (a) 2 ( )sin L ga ?? (b) 2 ( )sin L ga ?? (c) 2 sin L g ? (d) 2 sin L a ? 18. A body cools from 80°C to 64°C in 5 min and same body cools from 80°C to 52°C in 10 min, what is the temperature of the surrounding? (a) 24°C (b) 28°C (c) 22°C (d) 25°C 19. The change in potential energy when a body of mass m is raised to a height nR from Earthâ€˜s surface is (R = radius of the earth,g=acceleration due to gravity on surface of Earth) (a) ( 1) n mgR n ? (b) mgR (c) ( 1) n mgR n ? (d) 2 2 ( 1) n mgR n ? 20. An isolated particle of mass m is moving in a horizontal plane (x-y), along the x-axis, at a certain height above the ground. It suddenly explodes into two fragments of masses m/4 and 3m/4. An instant later, the smaller fragment is at 15 y ?? cm. The larger fragment at this instant is at (a) 5 y ?? cm (b) 20 y ?? (c) 5 y ?? cm (d) 20 y ?? cm 21. One gram of ice is mixed with one gram of steam. At thermal equilibrium the temperature of mixture is (a) 0°C (b) 100°C (c) 55°C (d) 80°C NEET FULL SYLLABUS TEST ---------------------------------------------- Space for Rough Work ---------------------------------------------- 3 22. A block of mass 0.50 kg is moving with a speed of 1 2.0 ns ? on a smooth surface. It strikes another stationary block of mass 1.0 kg and then move together as a single body. The energy loss during the collision is (a) 0.16 J (b) 1.00 J (c) 0.67 J (d) 0.34 J 23. A boat crosses a river from port A to port B, which are just on the opposite side. The speed of the water is W v and that of boat is B v relative to water. Assume 2. BW vv ? What is the time taken by the boat, if it has to cross the river directly on the AB line? [D=width of river] (a) 2 3 B D v (b) 3 2 B D v (c) 2 B D v (d) 2 B D v 24. A charged particle of mass m and charge q is released from rest in an electric field of constant magnitude E. The kinetic energy of the particle after time t is (a) 2 2 2 2 Eqt m (b) 22 2Et qm (c) 2 Eqm t (d) 2 2 2 qm t ? 25. The intensity of magnetic field at point X on the axis of a small magnet is equal to the field intensity at another point y on its equatorial axis. The ratio of X and Y from the centre of the magnet will be (a) 3 2 ? (b) 1/3 (2) ? (c) 3 2 (d) 1/3 2 26. Two capacitors of 25 µF and 100 µF are connected in series to a source of 120 V. Keeping their charges unchanged, they are separated and connected in parallel to each other. Find out energy loss in the process. (a) 5.2 J (b) 52 J (c) 50.2 J (d) 0.052 J 27. The steady state current in a 2 O resistor when the internal resistance of the battery is negligible and the capacitance of the condenser is 0.1 µF is (a) 0.6 A (b) 0.9 A (c) 1.5 A (d) 0.3 A 28. In an experiment, a magnet with its magnetic moment along the axis of a circular coil and directed towards the coil, is withdrawn away from the coil and parallel to itself. The current in the coil, as seen by the withdrawing magnet, is (a) zero (b) clockwise (c) anticlockwise (d) first (a) then (b) 29. A luminous object is placed at a distance of 30 cm from the convex lens of focal length 20cm. On the other side of the lens, at what distance from the lens a convex mirror of radius of curvature 10 cm be placed in order to have an inverted image of the object coinciding with image formed by lens? (a) 12 cm (b) 30 cm (c) 50 cm (d) 60 cm 30. Two slits separated by a distance of 1 mm are illuminated with red light of wavelength 7 6.5 10 ? ? meter. The interference fringes are observed on a screen placed one meter from the slits. The distance between the third dark fringe and fifth bright fringe (excluding central bright)on the same side of center is equal to (a) 0.65 mm (b) 1.63 mm (c) 3.25 mm (d) 4.8 mm 31. An electric bulb is marked 100 W, 230 V. If the supply voltage drops to 115 V, what is the heat and light energy produced by the bulb in 20 min? (a) 10 kJ (b) 15 kJ (c) 20 kJ (d) 30 kJ 32. A resistor R and 2 µF capacitor in series are connected through a 200 V direct supply. Across the capacitor is a neon bulb that lights up at 120 V. Find the value of R to make the bulb light up 5 s after the switch has been closed. (Take 10 log (2.5) 0.4) ? (a) 5 1.7 10 ?? (b) 6 2.7 10 ?? (c) 7 3.3 10 ?? (d) 4 1.3 10 ?? 33. A coil of resistance 400 ? is placed in a magnetic field. If the magnetic flux (wb) ? linked with the coil varies with time t(s) as 2 50 4. t ? ? ? The induced current in the coil at t2 ? s is (a) 0.5 A (b) 0.1 A (c) 2 A (d) 1 A 34. An electromagnetic wave of frequency 3 MHz passes from vacuum into a dielectric medium with permittivity 4 r ?? and 1, r ?? then (a) the wavelength and frequency both remain unchanged (b) the wavelength is doubled and the frequency remains unchanged (c) the wavelength is doubled and the frequency becomes half (d) the wavelength is halved and the frequency remains unchanged. NEET FULL SYLLABUS TEST 4 ----------------------------------------------- Space of Rough Work ---------------------------------------------- 35. The rms value of the electric field of the light coming from the sun is 720 N 1 C. ? The average total energy density of the electromagnetic wave is (a) 33 3.3 10 J m ?? ? (b) 63 4.58 10 J m ?? ? (c) 93 6.37 10 J m ?? ? (d) 12 3 81.35 10 J m ?? ? 36. In Youngâ€˜s double slit experiment, one of the slits is wider than the other, so that the amplitude of the light from one slit is double that from the other slit. If m I be the maximum intensity, the resultant intensity when they interfere at phase difference ? is given by (a) 2 m I 1 2cos 32 ? ?? ? ?? ?? (b) 2 m I 1 4 cos 52 ? ?? ? ?? ?? (c) 2 m I 1 8 cos 92 ? ?? ? ?? ?? (d) 2 m I 8 cos 92 ? ?? ? ?? ?? 37. A compound microscope has an eye piece of focal length 10 cm and an objective of focal length 4 cm. Calculate the magnification, if an object is kept at distance of 5 cm from the objective, so that the final image is formed at the least distance of distinct vision 20 cm. (a) 12 (b) 11 (c) 10 (d) 13 38. In a galvanometer 5% of the total current in the circuit passes through it and remaining through shunt. If the resistance of the galvanometer is G, the shunt resistance S connected to the galvanometer is (a) 19 G (b) 19 G (c) 20 G (d) 20 G 39. The power factor of the circuit as shown in figure is (a) 0.2 (b) 0.4 (c) 0.8 (d) 0.6 40. The diode used in the circuit shown in the figure has a constant voltage drop at 0.5 V at all currents and a maximum power rating of 100 milli watts. What should be the value of the resistor R, connected in series with diode, for obtaining maximum current? (a) 6.76 ? (b) 20 ? (c) 5 ? (d) 5.6 ? 41. The half-life of a radioactive isotope X is 50 years. It decays to another element Y which is stable. The two elements X and Y were found to be in the ratio of 1 : 15 in a sample of a given rock. The age of the rock was estimated to be (a) 100 years (b) 150 years (c) 200 years (d) 250 years 42. On shining light of wavelength 6 6.2 10 ? ? m on a metal surface photo-electrons are emitted. The work function of the metal is 0.1 eV. Find the kinetic energy of a photo- electron (in eV) (a) 0.1 (b) 0.2 (c) 0.3 (d) 0.4 43. The far point of a near sighted person is 6.0 m from her eyes, and she wears contacts that enable her to see distant objects clearly. A tree is 18.0 m away and 2.0 high. How high is the image formed by the contacts? (a) 1.0 m (b) 1.5 m (c) 0.75 m (d) 0.50 m 44. In an experiment on photoelectric emission from a metallic surface, wavelength of incident light is 7 2 10 ? ? m and stopping potential is 2.5 V. The threshold frequency of the metal is approximately (Charge of electron 19 1.6 10 e ? ?? C, Planckâ€˜s constant 34 6.6 10 h ? ?? J s) (a) 15 12 10 ? Hz (b) 15 9 10 ? Hz (c) 14 9 10 ? Hz (d) 13 12 10 ? Hz 45. Two cells of emf 1 ? and 2 ? 12 () ? ? ? are connected as shown in figure. When a potentiometer is connected between A and B, the balancing length of the potentiometer wire is 300 cm. on connecting the same potentiometer between A and C, the balancing length is 100 cm. The ratio 12 : ?? is (a) 3 : 1 (b) 1 : 3 (c) 2 : 3 (d) 3 : 2 CHEMISTRY 46. Excess of HCl is reacted with 6.5g of zinc. The hydrogen liberated is burnt with oxygen. The mass of water formed is (Atomic mass of Zn = 65) (a) 0.2 g (b) 0.9 g (c) 1.8 g (d) 3.6 g 47. A metal forms three oxides A, B and C in n, n+1 and n+2 oxidation states. The oxide which has highest percentage of metal is (a) A (b) B (c) C (d) Cannot be predicted Page 5 NEET FULL SYLLABUS TEST ---------------------------------------------- Space for Rough Work ---------------------------------------------- 1 PHYSICS 1. If momentum (P), area (A) and time (T) are taken to be fundamental quantities, then energy has the Dimensional formula (a) 1 1 1 [P A T ] ? (b) 2 1 1 [P A T ] (c) 1 1/2 1 [P A T ] ? (d) 1 1 2 [PA T ] ? 2. The bob of a simple pendulum is a spherical hollow ball filled with water. A plugged hole near the bottom of the oscillating bob gets suddenly unplugged. During observation, till water is coming out, the time period of oscillation would (a) remain unchanged (b) increase towards a saturation value (c) first increase and then decrease to the original value (d) first decrease and then increase to the original value 3. Two masses are connected by a string as shown in the figure over a frictionless pulley attached to a fixed wedge. The acceleration of the system is (a) 2 4 ms ? (b) 2 2 ms ? (c) zero (d) 2 9.8 ms ? 4. Two identical rectangular rods of metal of thermal resistance R, are welded end to end as shown in figure (i) and 10 J of heat flows through the rods in 2 min. How long would it take for 30 J of heat to flow through the rods if they are welded as shown in figure (ii) (a) 2 min (b) 1.5 min (c) 1 min (d) 4 min 5. Distance between the centers of two stars is 10a. The masses of these stars are M and 16M and their radii a and 2a respectively. A body of mass m is fired straight from the surface of the larger star towards the smaller star. The minimum initial speed for the body to reach the surface of smaller star is (a) 2 3 Gm a (b) 35 2 Gm a (c) 25 3 Gm a (d) 3 2 Gm a 6. A mild-steel wire of length 2L and cross-sectional area A is stretched, well within elastic limit, horizontally between two pillars,A mass m is suspended from the midpoint of the wire. Strain in the wire is (a) 2 2 2 x L (b) x L (c) 2 x L (d) 2 2 x L 7. Two point masses of 0.3 kg and 0.7 kg are fixed at the ends of a rod of length 1.4 m and of negligible mass. The rod is set rotating about an axis perpendicular to its length with a uniform angular speed. The point on the rod through which the axis should pass in order that the work required for rotation of the rod is minimum, is located at a distance of (a) 0.42 m from mass of 0.3 kg (b) 0.70 m from mass of 0.7 kg (c) 0.98 m from mass of 0.3 kg (d) 0.98 m from mass of 0.7 kg 8. A bob of mass m is suspended by a massless string of length I. The horizontal velocity v at position a is just sufficient to make it reach the point B. The angle ? at which the speed of the bob is half of that at A, satisfies (a) 4 ? ?? (b) 42 ?? ? ? ? (c) 24 ? ? ? ? ? ? (d) 3 4 ? ? ? ? ? 9. An insulated container containing n moles of monoatomic gas of molar mass m is moving with a velocity 0 . v If the container is suddenly stopped, find the changes in temperature (a) 2 0 3 mv R (b) 2 0 3 mv nR (c) 2 0 mnv R (d) 2 0 2 mv R ? NEET FULL SYLLABUS TEST 2 ----------------------------------------------- Space of Rough Work ---------------------------------------------- 10. An object of specific gravity ? is hung from a thin steel wire. The fundamental frequency for transverse standing waves in the wire is 300 Hz. The object is immersed in water so that one half of its volume is submerged. The new fundamental frequency in Hz is (a) 1/2 21 300 2 ?? ?? ?? ? ?? (b) 1/2 2 300 21 ?? ? ?? ?? ?? (c) 2 300 21 ?? ? ?? ?? ?? (d) 21 300 2 ?? ?? ?? ? ?? 11. A student uses a simple pendulum of exactly 1 m length to determine g, the acceleration due to gravity. He uses a stop watch with the least count of 1 s for this and records 40 s for 20 oscillations. For this observation, which of the following statements is true? (a) Error ?T in measuring T, the time period, is 0.02 seconds (b) Error ?T in measuring T, the time period, is 1 second (c) Percentage error in the determination of g is 5% (d) Percentage error in the determination of g is 2.5 12. The water flows from a tap of diameter 1.25 cm with a rate of 5 3 1 5 10 m s ?? ? . The density and coefficient of viscosity are 33 10 kg m and 3 10 ? Pa is respectively. The flow of water is (a) steady with Reynolds number 5100 (b) turbulent with Reynolds number 5100 (c) steady with Reynolds number 3900 (d) turbulent with Reynolds number 3900 13. A force F is applied at the top of a ring of mass M and radius R placed on a rough horizontal surface as shown in figure. Friction is sufficient to prevent slipping. The friction force acting on the ring is (a) 2 F towards right (b) 3 F towards left (c) 2 3 F towards right (d) zero 14. In refrigerator one removes heat from a lower temperature and deposits to the surroundings at a higher temperature. In this process, mechanical work has to be done, which is provided by an electric motor. If the motor is of 1 kW power, and heat is transferred from â€“3°C to 27°C, find the heat taken out of the refrigerator per second assuming its efficiency is 50% of a perfect heat engine. (a) 14 J (b) 12 J (c) 19 J (d) 20 J 15. Three points masses, each of mass m, are placed at the corners of an equilateral triangle of side ?? . Then the moment of inertia of this system about an axis along one of the side of the triangle is (a) 2 3ml (b) 2 ml (c) 2 3 m 4 l (d) 2 3 m 2 l 16. A physical quantity, 42 4 1/3 () ab Y cd ? has four observables a, b, c and d. The percentage error in a, b, c and d are 2%, 3%, 4% and 5% respectively the error in y will be (a) 6% (b) 11% (c) 12% (d) 22% 17. A smooth inclined plane of length L having inclination ? with the horizontal is inside a lift which is moving down with retardation a. The time taken by a body to slide down the inclined plane, from rest, will be (a) 2 ( )sin L ga ?? (b) 2 ( )sin L ga ?? (c) 2 sin L g ? (d) 2 sin L a ? 18. A body cools from 80°C to 64°C in 5 min and same body cools from 80°C to 52°C in 10 min, what is the temperature of the surrounding? (a) 24°C (b) 28°C (c) 22°C (d) 25°C 19. The change in potential energy when a body of mass m is raised to a height nR from Earthâ€˜s surface is (R = radius of the earth,g=acceleration due to gravity on surface of Earth) (a) ( 1) n mgR n ? (b) mgR (c) ( 1) n mgR n ? (d) 2 2 ( 1) n mgR n ? 20. An isolated particle of mass m is moving in a horizontal plane (x-y), along the x-axis, at a certain height above the ground. It suddenly explodes into two fragments of masses m/4 and 3m/4. An instant later, the smaller fragment is at 15 y ?? cm. The larger fragment at this instant is at (a) 5 y ?? cm (b) 20 y ?? (c) 5 y ?? cm (d) 20 y ?? cm 21. One gram of ice is mixed with one gram of steam. At thermal equilibrium the temperature of mixture is (a) 0°C (b) 100°C (c) 55°C (d) 80°C NEET FULL SYLLABUS TEST ---------------------------------------------- Space for Rough Work ---------------------------------------------- 3 22. A block of mass 0.50 kg is moving with a speed of 1 2.0 ns ? on a smooth surface. It strikes another stationary block of mass 1.0 kg and then move together as a single body. The energy loss during the collision is (a) 0.16 J (b) 1.00 J (c) 0.67 J (d) 0.34 J 23. A boat crosses a river from port A to port B, which are just on the opposite side. The speed of the water is W v and that of boat is B v relative to water. Assume 2. BW vv ? What is the time taken by the boat, if it has to cross the river directly on the AB line? [D=width of river] (a) 2 3 B D v (b) 3 2 B D v (c) 2 B D v (d) 2 B D v 24. A charged particle of mass m and charge q is released from rest in an electric field of constant magnitude E. The kinetic energy of the particle after time t is (a) 2 2 2 2 Eqt m (b) 22 2Et qm (c) 2 Eqm t (d) 2 2 2 qm t ? 25. The intensity of magnetic field at point X on the axis of a small magnet is equal to the field intensity at another point y on its equatorial axis. The ratio of X and Y from the centre of the magnet will be (a) 3 2 ? (b) 1/3 (2) ? (c) 3 2 (d) 1/3 2 26. Two capacitors of 25 µF and 100 µF are connected in series to a source of 120 V. Keeping their charges unchanged, they are separated and connected in parallel to each other. Find out energy loss in the process. (a) 5.2 J (b) 52 J (c) 50.2 J (d) 0.052 J 27. The steady state current in a 2 O resistor when the internal resistance of the battery is negligible and the capacitance of the condenser is 0.1 µF is (a) 0.6 A (b) 0.9 A (c) 1.5 A (d) 0.3 A 28. In an experiment, a magnet with its magnetic moment along the axis of a circular coil and directed towards the coil, is withdrawn away from the coil and parallel to itself. The current in the coil, as seen by the withdrawing magnet, is (a) zero (b) clockwise (c) anticlockwise (d) first (a) then (b) 29. A luminous object is placed at a distance of 30 cm from the convex lens of focal length 20cm. On the other side of the lens, at what distance from the lens a convex mirror of radius of curvature 10 cm be placed in order to have an inverted image of the object coinciding with image formed by lens? (a) 12 cm (b) 30 cm (c) 50 cm (d) 60 cm 30. Two slits separated by a distance of 1 mm are illuminated with red light of wavelength 7 6.5 10 ? ? meter. The interference fringes are observed on a screen placed one meter from the slits. The distance between the third dark fringe and fifth bright fringe (excluding central bright)on the same side of center is equal to (a) 0.65 mm (b) 1.63 mm (c) 3.25 mm (d) 4.8 mm 31. An electric bulb is marked 100 W, 230 V. If the supply voltage drops to 115 V, what is the heat and light energy produced by the bulb in 20 min? (a) 10 kJ (b) 15 kJ (c) 20 kJ (d) 30 kJ 32. A resistor R and 2 µF capacitor in series are connected through a 200 V direct supply. Across the capacitor is a neon bulb that lights up at 120 V. Find the value of R to make the bulb light up 5 s after the switch has been closed. (Take 10 log (2.5) 0.4) ? (a) 5 1.7 10 ?? (b) 6 2.7 10 ?? (c) 7 3.3 10 ?? (d) 4 1.3 10 ?? 33. A coil of resistance 400 ? is placed in a magnetic field. If the magnetic flux (wb) ? linked with the coil varies with time t(s) as 2 50 4. t ? ? ? The induced current in the coil at t2 ? s is (a) 0.5 A (b) 0.1 A (c) 2 A (d) 1 A 34. An electromagnetic wave of frequency 3 MHz passes from vacuum into a dielectric medium with permittivity 4 r ?? and 1, r ?? then (a) the wavelength and frequency both remain unchanged (b) the wavelength is doubled and the frequency remains unchanged (c) the wavelength is doubled and the frequency becomes half (d) the wavelength is halved and the frequency remains unchanged. NEET FULL SYLLABUS TEST 4 ----------------------------------------------- Space of Rough Work ---------------------------------------------- 35. The rms value of the electric field of the light coming from the sun is 720 N 1 C. ? The average total energy density of the electromagnetic wave is (a) 33 3.3 10 J m ?? ? (b) 63 4.58 10 J m ?? ? (c) 93 6.37 10 J m ?? ? (d) 12 3 81.35 10 J m ?? ? 36. In Youngâ€˜s double slit experiment, one of the slits is wider than the other, so that the amplitude of the light from one slit is double that from the other slit. If m I be the maximum intensity, the resultant intensity when they interfere at phase difference ? is given by (a) 2 m I 1 2cos 32 ? ?? ? ?? ?? (b) 2 m I 1 4 cos 52 ? ?? ? ?? ?? (c) 2 m I 1 8 cos 92 ? ?? ? ?? ?? (d) 2 m I 8 cos 92 ? ?? ? ?? ?? 37. A compound microscope has an eye piece of focal length 10 cm and an objective of focal length 4 cm. Calculate the magnification, if an object is kept at distance of 5 cm from the objective, so that the final image is formed at the least distance of distinct vision 20 cm. (a) 12 (b) 11 (c) 10 (d) 13 38. In a galvanometer 5% of the total current in the circuit passes through it and remaining through shunt. If the resistance of the galvanometer is G, the shunt resistance S connected to the galvanometer is (a) 19 G (b) 19 G (c) 20 G (d) 20 G 39. The power factor of the circuit as shown in figure is (a) 0.2 (b) 0.4 (c) 0.8 (d) 0.6 40. The diode used in the circuit shown in the figure has a constant voltage drop at 0.5 V at all currents and a maximum power rating of 100 milli watts. What should be the value of the resistor R, connected in series with diode, for obtaining maximum current? (a) 6.76 ? (b) 20 ? (c) 5 ? (d) 5.6 ? 41. The half-life of a radioactive isotope X is 50 years. It decays to another element Y which is stable. The two elements X and Y were found to be in the ratio of 1 : 15 in a sample of a given rock. The age of the rock was estimated to be (a) 100 years (b) 150 years (c) 200 years (d) 250 years 42. On shining light of wavelength 6 6.2 10 ? ? m on a metal surface photo-electrons are emitted. The work function of the metal is 0.1 eV. Find the kinetic energy of a photo- electron (in eV) (a) 0.1 (b) 0.2 (c) 0.3 (d) 0.4 43. The far point of a near sighted person is 6.0 m from her eyes, and she wears contacts that enable her to see distant objects clearly. A tree is 18.0 m away and 2.0 high. How high is the image formed by the contacts? (a) 1.0 m (b) 1.5 m (c) 0.75 m (d) 0.50 m 44. In an experiment on photoelectric emission from a metallic surface, wavelength of incident light is 7 2 10 ? ? m and stopping potential is 2.5 V. The threshold frequency of the metal is approximately (Charge of electron 19 1.6 10 e ? ?? C, Planckâ€˜s constant 34 6.6 10 h ? ?? J s) (a) 15 12 10 ? Hz (b) 15 9 10 ? Hz (c) 14 9 10 ? Hz (d) 13 12 10 ? Hz 45. Two cells of emf 1 ? and 2 ? 12 () ? ? ? are connected as shown in figure. When a potentiometer is connected between A and B, the balancing length of the potentiometer wire is 300 cm. on connecting the same potentiometer between A and C, the balancing length is 100 cm. The ratio 12 : ?? is (a) 3 : 1 (b) 1 : 3 (c) 2 : 3 (d) 3 : 2 CHEMISTRY 46. Excess of HCl is reacted with 6.5g of zinc. The hydrogen liberated is burnt with oxygen. The mass of water formed is (Atomic mass of Zn = 65) (a) 0.2 g (b) 0.9 g (c) 1.8 g (d) 3.6 g 47. A metal forms three oxides A, B and C in n, n+1 and n+2 oxidation states. The oxide which has highest percentage of metal is (a) A (b) B (c) C (d) Cannot be predicted NEET FULL SYLLABUS TEST ---------------------------------------------- Space for Rough Work ---------------------------------------------- 5 48. The rate of diffusion of a gas of molecular weight 72 is 10ml per sec. The rate of diffusion of hydrogen at same temperature and pressure is (a) 10 ml (b) 30 ml per sec. (c) 60 2 ml per sec. (d) 60 ml per sec. 49. Mole fraction of benzene in the vapours over a solution of benzene and toluene is 0.4. If the original vapour pressure of benzene is 150 mm Hg and toluene is 50 mm Hg, the mole fraction of benzene in the solution is (a) 0.4 (b) 0.75 (c) 0.25 (d) 0.18 50. EMF (reduction) of the half cell (0.001M) 2(1atm) NaOH /H (Pt) at 298 K is (a) 0.1773 ? (b) 0.6501 ? (c) Zero (d) 0.0591 51. On passing some amount of charge through an aqueous solution of 2 Na S between inert electrodes at 273 K, one atmosphere, the volume of hydrogen released is 560 ml. The mass of sulphur deposited is (a) 16 g (b) 3.2 g (c) 0.8 g (d) 6.4 g 52. When an ideal solution is formed (a) mix S ? is zero (b) mix H ? is zero (c) Rarultâ€˜s law is not followed (d) All of the above 53. AT pH = 2, Quinhydrone Quinhydrone E° 1.30 V, E ? will be : (a) 1.36 V (b) 1.30 V (c) 1.42 V (d) 1.20 V 54. Which of the following compounds gives propyne on treatment with water ? (a) 2 CaC (b) 22 Li C (c) 43 Al C (d) 23 Mg C 55. The shape around N in 33 N(SiH ) is (a) pyramidal (b) Tetrahedron (c) Plane triangular (d) T-Shaped 56. Red Phosphorus can be converted to white phosphorus by (a) Heating at 250ºC in absence of air (b) Evaporating in inert atmosphere and then condensing in water (c) Heating under high pressure (d) Any of the above 57. Clathrate compounds are best formed by (a) He (b) Ne (c) Kr (d) All of these 58. When a manganese salt is heated with boric anhydride, a coloured bead is formed which is due to the formation of (a) 2 4 7 Mn B O (b) MnO (c) 22 Mn(BO ) (d) Mn metal 59. The most stable 2 ? oxidation state is for (a) Si (b) Ge (c) Sn (d) Pb 60. A substance undergoes first order decomposition. The decomposition follows two parallel first order reactions as : The percentage distribution of B and C are : (a) 80% B and 20% C (b) 76.83% and 23.17% C (c) 90% B and 10% C (d) 60% B and 40% C 61. The most stable complexes are formed according by Irving william order by (a) 2+ Co (b) 2+ Ni (c) 2+ Cu (d) 2+ Fe 62. The glucose give the osazone as product when reacted with (a) one mole of phenyl hydrozine (b) two mole of phenyl hydrazine (c) three mole of phenyl hydrazine (d) four moles of phenyl hydrazine 63. Bakelite is made by the action of (a) Phenol and formaldehyde (b) Melamine and formaldehyde (c) Urea are formaldehyde (d) Ethylene glycol and phthalic acid 64. Which of the following group is a chromophore ? (a) NN ? ? ? ? (b) OH ? (c) 3 CH ? (d) 2 NH ? 65. The optically inactive compound amongst the given compound is (a) 2-chlorobutane (b) 2-hydroxypropanoic acid (c) trans-1, 2-dichlorocyclopropane (d) 2-Amino-2-methyl propanoic acidRead More