NEET 2013 (Karnataka) | NEET Year Wise Previous Years Questions

Biology

Chemistry

1. In an experiment it showed that 10 mL of 0.05 M solution of chloride required 10 mL of 0.1 M solution of AgNO3, which of 2. On hydrolysis of a ''compound'', two compounds are obtained. One of which one treatment with sodium nitrite and hydrochl 3. Some reactions of amines are given. Which one is not correct?4. In DNA, the linkages between different nitrogenous bases are 5. Which condition is not satisfied by an ideal solution? 6. Consider the half-cell reduction reaction Mn2+ + 2e$$-$$ $$ \to $$ Mn, Eo = $$-$$1.18 V Mn2+ $$ \to $$ Mn3+ + e$$-$$, 7. How many gram of cobalt metal will be deposited when a solution of cobalt (II) chloride is electrolyzed with a current o 8. For a reaction between A and B the order with respect to A is 2 and the other with respect to B is 3. The concentrations 9. A reaction is 50% complete in 2 hours and 75% complete in 4 hours. The order of reaction is 10. Which statement is wrong?11. Identify the incorrect statement, regarding the molecule XeO4 :12. Number of isomeric alcohols of molecular formula C6H14O which give positive iodoform test is 13. Sc (Z = 21) is a transition element but Zn (Z = 30) is not because 14. In a particular isomer of [Co(NH3)4Cl2]o, the Cl$$-$$Co$$-$$Cl angle is 90o, this isomer is known as 15. The anion of acetylacetone (acac) forms Co (acac)3 chelate with Co3+. The rings of the chelate are 16. Crystal field splitting energy for high spin d4 octahedral complex is 17. The correct IUPAC name for [CrF2(en)2]Cl is 18. Which among the following is a paramagnetic complex? 19. Which is diamagnetic? 20. Accumulation of lactic acid (HC3H5O3), a monobasic acid in tissues leads to pain and a feeling of fatigue. In a 0.10 M a 21. The outer electronic configuration of Gd (At. No. 64) is 22. According to law of photochemical equivalence the energy absorbed (in ergs/mole) is given as (h = 6.62 $$ \times $$ 10$$23. Which one of the following arrangements represents the correct order of least negative to most negative electron gain en 24. The pair of species that has the same bond order in the following is 25. In which of the following pair both the species have sp3 hybridization ? 26. The outer orbitals of C in ethane molecule can be considered to be hybridized to give three equivalent sp2 orbitals. The 27. In which of the following ionization processes the bond energy increases and the magnetic behaviour changes from paramag 28. When 5 litres of a gas mixture of methane and propane is perfectly combusted at 0oC and 1 atmosphere, 16 litres of oxyge 29. Three thermochemical equations are given below (i)  C(graphite) + O2(g) $$ \to $$ CO2(g); $$\De 30. At 100oC the Kw of water is 55 times its value at 25oC. What will be the pH of neutral solution? (log 55 = 1.74)31. The values of Ksp of CaCO3 and CaC2O4 are 4.7 $$ \times $$ 10$$-$$9 and 1.3 $$ \times $$ $$-$$9 respectively at 25oC. I 32. The dissociation constant of weak acid is 1 $$ \times $$ 10$$-$$4. In order to prepare a buffer solution with a pH = 5, 33. Arrange the following in increasing order of stability 34. What is the hybridisation state of benzyl carbonium ion? 35. Nitrogen detection in an organic compound is carried out by Lassaigne's test. The blue colour formed corresponds to whic 36. Homolytic fission of the following alkanes forms free radicals CH3 $$-$$ CH3, CH3 $$-$$ CH2 $$-$$ CH3, (CH3)2CH $$-$$ CH 37. Which of the following chemical system is non aromatic ? 38. In the following reaction : Product 'P' will not give 39. Given : I and II are

Physics

1. Two plane mirrors are inclined at 70o. A ray incident on one mirror at angle, $$\theta $$ after reflection falls on seco 2. An electric dipole of dipole moment p is aligned parallel to a uniform electric field E. The energy required to rotate t 3. Two rods are joined end to end, as shown. Both have a cross-sectional area of 0.01 cm2. Each is 1 meter long. One rod is 4. A 12 cm wire is given a shape of a right angled triangle ABC having sides 3 cm, 4 cm and 5 cm as shown in the figure. Th 5. Ten identical cells connected in series are needed to heat a wire of length one meter and radius 'r' by 10oC in time 't'6. A long straight wire carries a certain current and produces a magnetic field 2 $$ \times $$ 10$$-$$4 Wb m$$-$$2 at a per 7. A circular coil ABCD carrying a current 'i' is placed in a uniform magnetic field. If the magnetic force on the segment 8. A bar magnet of magnetic moment M is placed at right angles to a magnetic induction B. If a force F is experienced by ea 9. The primary of a transformer when connected to a dc battery of 10 Volt draws a current of 1 mA. The number of turns of t 10. A current of 2.5 A flows through a coil of inductance 5 H. The magnetic flux linked with the coil is 11. An electromagnetic wave of frequency $$\upsilon = 3.0$$ MHz passes from vaccum into a dielectric medium with relative p 12. In Young's double slit experiment the distance between the slits and the screen is doubled. The separation between the s 13. A charge q is placed at the centre of the line joining two equal charges Q. The system of the three charges will be in e 14. A parallel beam of light of wavelength $$\lambda $$ is incident normally on a narrow slit. A diffraction pattern formed 15. The reddish appearance of the sun at sunrise and sunset is due to 16. A source of light is placed at a distance of 50 cm from a photo cell and the stopping potential is found to be V0. If th 17. The de-broglie wavelength of neutrons in thermal equilibrium at temperature T is 18. How does the Binding Energy per nucleon vary with the increase in the number of nucleons ? 19. An electron in hydrogen atom makes a transition n1 $$ \to $$ n2 where n1 and n2 are principal quantum numbers of the two 20. The output from a NAND gate is divided into two in parallel and fed to another NAND gate. The resulting gate is a 21. In an unbiased p-n junction, holes diffuse from the p-region to n-region because of 22. One way in which the operation of a n-p-n transistor differs from that of a p-n-p 23. If the ratio of diameters, lengths and Young's modulus of steel and copper wires shown in the figure are p, q and s resp 24. The displacement 'x' (in meter) of a particle of mass 'm' (in kg) moving in one dimension under the action of a force, i 25. Vectors $$\overrightarrow A ,\overrightarrow B $$ and $$\overrightarrow C $$ are such that $$\overrightarrow A .\overrig 26. A person holding a rifle (mass of person and rifle together is 100 kg) stands on a smooth surface and fires 10 shots hor 27. A car is moving in a circular horizontal track of radius 10 m with a constant speed of 10 m/s. A bob is suspended from t 28. A particle with total energy E is moving in a potential energy region U(x). Motion of the particle is restricted to the 29. One coolie takes 1 minute to raise a suitcase through a height of 2 m but the second coolie takes 30 s to raise the same 30. The ratio of radii of gyration of a circular ring and a circular disc, of the same mass and radius, about an axis passin 31. Two discs are rotating about their axes, normal to the discs and passing through the centres of the discs. Disc D1 has 2 32. A particle of mass 'm' is kept at rest at a height 3R from the surface of earth, where 'R' is radius of earth and 'M' is 33. The radius of a planet is twice the radius of earth. Both have almost equal average mass densities. VP and VE are escape 34. Two metal rods 1 and 2 of same lengths have same temperature difference between their ends. Their thermal conductivities 35. A fluid is in streamline flow across a horizontal pipe of variable area of cross section. For this which of the followin 36. The density of water at 20oC is 998 kg/m3 and at 40oC is 992 kg/m3. The coefficient of volume expansion of water is 37. Which of the following relations does not give the equation of an adiabatic process, where terms have their usual meanin 38. A system is taken from state a to state c by two paths adc and abc as shown in the figure. The internal energy at a is $39. Two Carnot engines A and B are operated in series. The engine A receives heat from the source at temperature T1 and reje 40. In a vessel, the gas is at pressure P. If the mass of all the molecules is halved and their speed is doubled, then the r 41. A particle of mass m oscillates along x-axis according to equation x = asin$$\omega $$t. The nature of the graph between 42. The length of the wire between two ends of a sonometer is 100 cm. What should be the positions of two bridges below the 43. The pair of quantities having same dimensions is

NEET 2013 (Karnataka)

MCQ (Single Correct Answer)

-1

Two discs are rotating about their axes, normal to the discs and passing through the centres of the discs. Disc D₁ has 2 kg mass and 0.2 m radius and initial angular velocity of 50 rad s^$$-$$1. Disc D₂ has 4 kg mass, 0.1 m radius and initial angular velocity of 200 rad s^$$-$$1. The two discs are brought in contact face to face, with their axes of rotation coincident. The final angular velocity (in rad s^$$-$$1) of the system is

100

120

NEET 2013 (Karnataka)

MCQ (Single Correct Answer)

-1

A particle of mass 'm' is kept at rest at a height 3R from the surface of earth, where 'R' is radius of earth and 'M' is mass of earth. The minimum speed with which it should be projected , so that it does not return back, is
(g is acceleration due to gravity on the surface of earth)

$${\left( {{{GM} \over {2R}}} \right)^{1/2}}$$

$${\left( {{{gR} \over 4}} \right)^{1/2}}$$

$${\left( {{{2g} \over R}} \right)^{1/2}}$$

$${\left( {{{GM} \over R}} \right)^{1/2}}$$

NEET 2013 (Karnataka)

MCQ (Single Correct Answer)

-1

The radius of a planet is twice the radius of earth. Both have almost equal average mass densities. V_P and V_E are escape velocities of the planet and the earth, respectively, then

V_P = 1.5 V_E

V_P = 2 V_E

V_E = 3 V_P

V_E = 1.5 V_P

NEET 2013 (Karnataka)

MCQ (Single Correct Answer)

-1

Two metal rods 1 and 2 of same lengths have same temperature difference between their ends. Their thermal conductivities are K₁ and K₂ and cross sectional areas A₁ and A₂, respectively. If the rate of heat conduction in 1 is four times that in 2, then

K₁A₁ = 4K₂A₂

K₁A₁ = 2K₂A₂

4K₁A₁ = K₂A₂

K₁A₁ = K₂A₂

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