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

Biology

Chemistry

1. According to law of photochemical equivalence the energy absorbed (in ergs/mole) is given as (h = 6.62 $$ \times $$ 10$$ 2. On hydrolysis of a ''compound'', two compounds are obtained. One of which one treatment with sodium nitrite and hydrochl 3. Some reactions of amines are given. Which one is not correct? 4. In DNA, the linkages between different nitrogenous bases are 5. Which condition is not satisfied by an ideal solution? 6. For a reaction between A and B the order with respect to A is 2 and the other with respect to B is 3. The concentrations 7. Consider the half-cell reduction reaction Mn2+ + 2e$$-$$ $$ \to $$ Mn, Eo = $$-$$1.18 V Mn2+ $$ \to $$ Mn3+ + e$$-$$, 8. A reaction is 50% complete in 2 hours and 75% complete in 4 hours. The order of reaction is 9. How many gram of cobalt metal will be deposited when a solution of cobalt (II) chloride is electrolyzed with a current o 10. Which statement is wrong? 11. Identify the incorrect statement, regarding the molecule XeO4 : 12. Number of isomeric alcohols of molecular formula C6H14O which give positive iodoform test is 13. Sc (Z = 21) is a transition element but Zn (Z = 30) is not because 14. In a particular isomer of [Co(NH3)4Cl2]o, the Cl$$-$$Co$$-$$Cl angle is 90o, this isomer is known as 15. Which is diamagnetic? 16. The correct IUPAC name for [CrF2(en)2]Cl is 17. Crystal field splitting energy for high spin d4 octahedral complex is 18. Which among the following is a paramagnetic complex? 19. The anion of acetylacetone (acac) forms Co (acac)3 chelate with Co3+. The rings of the chelate are 20. Accumulation of lactic acid (HC3H5O3), a monobasic acid in tissues leads to pain and a feeling of fatigue. In a 0.10 M a 21. The outer electronic configuration of Gd (At. No. 64) is 22. Which one of the following arrangements represents the correct order of least negative to most negative electron gain en 23. In an experiment it showed that 10 mL of 0.05 M solution of chloride required 10 mL of 0.1 M solution of AgNO3, which of 24. In which of the following ionization processes the bond energy increases and the magnetic behaviour changes from paramag 25. In which of the following pair both the species have sp3 hybridization ? 26. The pair of species that has the same bond order in the following is 27. The outer orbitals of C in ethane molecule can be considered to be hybridized to give three equivalent sp2 orbitals. The 28. When 5 litres of a gas mixture of methane and propane is perfectly combusted at 0oC and 1 atmosphere, 16 litres of oxyge 29. Three thermochemical equations are given below (i)  C(graphite) + O2(g) $$ \to $$ CO2(g); $$\De 30. The dissociation constant of weak acid is 1 $$ \times $$ 10$$-$$4. In order to prepare a buffer solution with a pH = 5, 31. Arrange the following in increasing order of stability 32. Homolytic fission of the following alkanes forms free radicals CH3 $$-$$ CH3, CH3 $$-$$ CH2 $$-$$ CH3, (CH3)2CH $$-$$ CH 33. The values of Ksp of CaCO3 and CaC2O4 are 4.7 $$ \times $$ 10$$-$$9 and 1.3 $$ \times $$ $$-$$9 respectively at 25oC. I 34. What is the hybridisation state of benzyl carbonium ion? 35. 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) 36. Nitrogen detection in an organic compound is carried out by Lassaigne's test. The blue colour formed corresponds to whic 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. The de-broglie wavelength of neutrons in thermal equilibrium at temperature T is 2. 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 3. 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 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 bar magnet of magnetic moment M is placed at right angles to a magnetic induction B. If a force F is experienced by ea 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 long straight wire carries a certain current and produces a magnetic field 2 $$ \times $$ 10$$-$$4 Wb m$$-$$2 at a per 9. An electromagnetic wave of frequency $$\upsilon = 3.0$$ MHz passes from vaccum into a dielectric medium with relative p 10. 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 11. A current of 2.5 A flows through a coil of inductance 5 H. The magnetic flux linked with the coil is 12. 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 13. An electric dipole of dipole moment p is aligned parallel to a uniform electric field E. The energy required to rotate t 14. In Young's double slit experiment the distance between the slits and the screen is doubled. The separation between the s 15. Two plane mirrors are inclined at 70o. A ray incident on one mirror at angle, $$\theta $$ after reflection falls on seco 16. A parallel beam of light of wavelength $$\lambda $$ is incident normally on a narrow slit. A diffraction pattern formed 17. The reddish appearance of the sun at sunrise and sunset is due to 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. One way in which the operation of a n-p-n transistor differs from that of a p-n-p 21. The output from a NAND gate is divided into two in parallel and fed to another NAND gate. The resulting gate is a 22. In an unbiased p-n junction, holes diffuse from the p-region to n-region because of 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 pair of quantities having same dimensions is 25. Vectors $$\overrightarrow A ,\overrightarrow B $$ and $$\overrightarrow C $$ are such that $$\overrightarrow A .\overrig 26. 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 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 person holding a rifle (mass of person and rifle together is 100 kg) stands on a smooth surface and fires 10 shots hor 29. A particle with total energy E is moving in a potential energy region U(x). Motion of the particle is restricted to the 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. Two Carnot engines A and B are operated in series. The engine A receives heat from the source at temperature T1 and reje 38. Which of the following relations does not give the equation of an adiabatic process, where terms have their usual meanin 39. 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 $ 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. The length of the wire between two ends of a sonometer is 100 cm. What should be the positions of two bridges below the 42. A particle of mass m oscillates along x-axis according to equation x = asin$$\omega $$t. The nature of the graph between 43. The displacement 'x' (in meter) of a particle of mass 'm' (in kg) moving in one dimension under the action of a force, i

NEET 2013 (Karnataka)

MCQ (Single Correct Answer)

-1

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 the primary and secondary windings are 50 and 100 respectively. The voltage in the secondary and the current drawn by the circuit in the secondary are respectively

20 V and 2.0 mA

10 V and 0.5 mA

Zero volt and therefore no current

20 V and 0.5 mA

NEET 2013 (Karnataka)

MCQ (Single Correct Answer)

-1

A current of 2.5 A flows through a coil of inductance 5 H. The magnetic flux linked with the coil is

0.5 Wb

12.5 Wb

zero

2 Wb

NEET 2013 (Karnataka)

MCQ (Single Correct Answer)

-1

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 the distance between the light source and photo cell is made 25 cm, the new stopping potential will be :

V₀/2

V₀

4V₀

2V₀

NEET 2013 (Karnataka)

MCQ (Single Correct Answer)

-1

An electric dipole of dipole moment p is aligned parallel to a uniform electric field E. The energy required to rotate the dipole by 90^o is

p² E

infinity

pE²

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