AIPMT 2015 | NEET Year Wise Previous Years Questions

Biology

Chemistry

1. What is the mass of the precipitate formed when 50 mL of 16.9% solution of AgNO3 is mixed with 50 mL of 5.8% NaCl solut 2. If Avogadro number NA, is changed from 6.022 $$ \times $$ 1023 mol$$-$$1 to 6.022 $$ \times $$ 1020 mol$$-$$1, this woul 3. The number of water molecules is maximum in 4. Which is the correct order of increasing energy of the listed orbitals in the atom of titanium ? (At. no. Z = 22) 5. In which of the following pairs, both the species are not isostructural ? 6. Decreasing order of stability of O2, O2$$-$$, O2+ and O22$$-$$ is 7. The heat of combination of carbon to CO2 is $$-$$393.5 kJ/mol. The heat released upon formation of 35.2 g of CO2 from ca 8. What is the pH of the resulting solution when equal volumes of 0.1 M NaOH and 0.01 M HCl are mixed? 9. If the equilibrium constant for N2(g) + O2(g) $$\rightleftharpoons$$ 2NO(g) is K, the equilibrium constant for $${1 \o 10. Aqueous solution of which of the following compounds is the best conductor of electric current ? 11. Which one of the following pairs of solution is not an acidic buffer ? 12. Which of the following statements is not correct for a nucleophile? 13. Which of the following is not the product of dehydration of 14. 2,3-Dimethyl-2-butene can be prepared by heating which of the following compounds with a strong acid? 15. In the reaction with HCl, an alkene reacts in accordance with the Markovnikov's rule to give a product 1-chloro-1 methyl 16. The possible stereo-structures of CH3CHOHCOOH, which are optically active, are called 17. In an SN1 reaction on chiral centers, there is 18. Reaction of phenol with chloroform in presence of dilute sodium hydroxide finally introduces which one of the following 19. Which of the following reaction(s) can be used for the preparation of alkyl halides? 20. The oxidation of benzene by V2O5 in the presence of air produces 21. Reaction of a carbonyl compound with one of the following reagents involves nucleophilic addition followed by eliminatio 22. Which one of the following esters gets hydrolysed most easily under alkaline conditions? 23. The following reaction is known by the name 24. Method by which aniline cannot be prepared is 25. The number of structural isomers possible from the molecular formula C3H9N is 26. What is the mole fraction of the solute in a 1.00 m aqueous solution? 27. The rate constant of the reaction A $$ \to $$ B is 0.6 $$ \times $$ 10$$-$$3 mol L$$-$$1 s$$-$$1. If the concentration 28. The stability of +1 oxidation state among Al, Ga, In and Tl increases in the sequence 29. The variation of the boiling points of the hydrogen halides is in the order HF > HI > HBr > HCl. What explains 30. Strong reducing behavior of H3PO2 is due to 31. The formation of the oxide ion, O2$$-$$(g) from oxygen atom requires first an exthermic and then an endothermic step as 32. Which of the statements given below is incorrect? 33. Assuming complete ionisation, same moles of which of the following compounds will require the least amount of acidified 34. Gadolinium belongs to 4f series. Its atomic number is 64. Which of the following is the correct electronic configuration 35. The sum of coordination number and oxidation number of the metal M in the complex [M(en)2(C2O4)]Cl (where en is ethylene 36. The hybridization involved in complex [Ni(CN)4]$$2-$$ is (At. No. Ni = 28) 37. The name of complex ion, [Fe(CN)6]3$$-$$ is 38. Number of possible isomers for the complex [Co(en)2Cl2]Cl will be (en = ethylenediamine)

Physics

1. If dimensions of critical velocity $$\upsilon $$c of a liquid flowing through a tube are expressed as $$\left[ {{\eta ^x 2. If vectors $$\overrightarrow A = \cos \omega t\widehat i + \sin \omega t\widehat j$$ and $$\overrightarrow B = \cos {{ 3. The positions vector of a particle $$\overrightarrow R $$ as a function of time is given by $$\overrightarrow R $$ = 4si 4. Two stones of masses m and 2m are whirled in horizontal circles, the heavier one in a radius $${r \over 2}$$ and the lig 5. A plank with a box on it at one end is gradually raised about the other end. As the angle of inclination with the horizo 6. Two particles A and B, move with constant velocities $$\overrightarrow {{v_1}} $$ and $$\overrightarrow {{v_2}} $$. At t 7. The heart of a man pumps 5 litres of blood through the arteries per minute at a pressure of 150 mm of mercury. If the d 8. A ball is thrown vertically downwards from a height of 20 m with an initial velocity v0. It collides with the ground, lo 9. On a frictionless surface, a block of mass M moving at speed v collides elastically with another block of same mass M wh 10. Point masses m1 and m2 are placed at the opposite ends of a rigid rod of length L, and negligible mass. The rod is to be 11. An automobile moves on a road with a speed of 54 km h$$-$$1. The radius of its wheels is 0.45 m and the moment of inerti 12. A force $$\overrightarrow F = \alpha \widehat i + 3\widehat j + 6\widehat k$$ is acting at a point $$\overrightarrow r 13. A remote-sensing satellite of earth revolves in a circular orbit at a height of 0.25 $$ \times $$ 106 m above the surfac 14. A satellite S is moving in an elliptical orbit around the earth. The mass of the satellite is very small compared to the 15. Water rises to a height h in capillary tube. If the length of capillary tube above the surface of water is made less tha 16. The value of coefficient of volume expansion of glycerin is 5 $$ \times $$ 10$$-$$4 K$$-$$1. The fractional change in th 17. The cylindrical tube of a spray pump has radius R, one end of which has n fine holes, each of radius r. If the speed of 18. The Young's modulus of steel is twice that of brass. Two wires of same length and of same area of cross section, one of 19. An ideal gas is compressed to half its initial volume by means of several processes. Which of the process results in th 20. The coefficient of performance of a refrigerator is 5. If the temperature inside freezer is $$-$$20oC, the temperature o 21. Two vessels separately contain two ideal gases A and B at the same temperature, the pressure of A being twice that of B. 22. A particle is executing a simple harmonic motion. Its maximum acceleration is $$\alpha $$ and maximum velocity is $$\bet 23. 4.0 g of a gas occupies 22.4 litres at NTP. The specific heat capacity of the gas at constant volume is 5.0 J K$$-$$1 mo 24. A string is stretched between fixed points separated by 75.0 cm. It is observed to have resonant frequencies of 420 Hz 25. The fundamental frequency of a closed organ pipe of length 20 cm is equal to the second overtone of an organ pipe open a 26. A parallel plate air capacitor has capacity C, distance of separation between plates is d and potential difference $$V$$ 27. If potential (in volts) in a region is expressed as V(x, y, z) = 6xy $$-$$ y + 2yz, the electric field (in N/C) at point 28. Two metal wires of identical dimensions are connected in series. If $$\sigma $$1 and $$\sigma $$2 are the conductivity o 29. A circuit contains an ammeter, a battery of 30 V and a resistance 40.8 ohm all connected in series. If the ammeter has 30. A potentiometer wire of length L and a resistance r are connected in series with a battery of e.m.f. E0 and a resistance 31. A proton and an alpha particle both enter a region of uniform magnetic field B, moving at right angles to the field B. I 32. A rectangular coil of length 0.12 m and width 0.1 m having 50 turns of wire is suspended vertically in a uniform magneti 33. A series R-C circuit is connected to an alternating voltage source. Consider two situations : (a)  When capac 34. An electron moves on a straight line path XY as shown. The abcd is a coil adjacent to the path of electron. What will be 35. The energy of the em waves is of the order of 15 keV. To which part of the spectrum does it belong ? 36. At the first minimum adjacent to the central maximum of a single-slit diffraction pattern, the phase difference between 37. A beam of light consisting of red, green and blue colours is incifent on a right angled prism. The refractive index of t 38. In an astronomical telescope in normal adjustment a straight black line of length L is drawn on inside part of objective 39. Two slits in Young's experiment have widths in the ratio 1 : 25. The ratio of intensity at the maxima and minima in the 40. A photoelectric surface is illuminated successively by monochromatic light of wavelength $$\lambda $$ and If the maximum 41. Light of wavelength 500 nm is incifent on a metal with work function 2.28 eV. The de Broglie wavelength of the emitted e 42. A nucleus of uranium decays at rest into nuclei of thorium and helium. Then 43. In the spectrum of hydrogen, the ratio of the longest wavelength in the Lyman series to the longest wavelength in the Ba 44. In the given figure, a diode D is connected to an external resistance R = 100 $$\Omega $$ and an e.m.f. of 3.5 V. If the

AIPMT 2015

MCQ (Single Correct Answer)

-1

Two vessels separately contain two ideal gases A and B at the same temperature, the pressure of A being twice that of B. Under such conditions, the density of A is found to be 1.5 times the density of B. The ratio of molecular weight of A and B is

$${1 \over 2}$$

$${2 \over 3}$$

$${3 \over 4}$$

AIPMT 2015

MCQ (Single Correct Answer)

-1

A particle is executing a simple harmonic motion. Its maximum acceleration is $$\alpha $$ and maximum velocity is $$\beta $$. Them, its time period of vibration will be

$${{{\beta ^2}} \over \alpha }$$

$${{2\pi \beta } \over \alpha }$$

$${{{\beta ^2}} \over {{\alpha ^2}}}$$

$${\alpha \over \beta }$$

AIPMT 2015

MCQ (Single Correct Answer)

-1

4.0 g of a gas occupies 22.4 litres at NTP. The specific heat capacity of the gas at constant volume is 5.0 J K^$$-$$1 mol^$$-$$1. If the speed of sound in this gas at NTP is 952 m s^$$-$$1, then the heat capacity at constant pressure is
(Take gas constant R $$=$$ 8.3 J K^$$-$$1 mol^$$-$$1)

7.0 J K^$$-$$1 mol^$$-$$1

8.5 J K^$$-$$1 mol^$$-$$1

8.0 J K^$$-$$1 mol^$$-$$1

7.5 J K^$$-$$1 mol^$$-$$1

AIPMT 2015

MCQ (Single Correct Answer)

-1

A string is stretched between fixed points separated by 75.0 cm. It is observed to have resonant frequencies of 420 Hz and 315 Hz. There are no other resonant frequencies between these two. The lowest resonant frequency for this string is

10.5 Hz

105 Hz

155 Hz

205 Hz

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