You are currently viewing NEET UG – 2017 Chemistry Question Paper with Answer Keys

NEET UG – 2017 Chemistry Question Paper with Answer Keys

1. Which of the following is a sink for CO?

(1) Micro-organisms present in the soil                   (2) Oceans

(3) Plants                                                                 (4) Haemoglobin

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2. The element Z = 114 has been discovered recently. It will belong to which of the following family group and electronic configuration?

(1) Carbon family, [Rn] 5f146d107s27p2

(2) Oxygen family, [Rn] 5f146d107s27p4

(3) Nitrogen family, [Rn] 5f146d107s27p6

(4) Halogen family, [Rn] 5f146d107s27p5

3. For a given reaction, ΔH = 35.5 kJ mol–1 and ΔS = 83.6 JK–1 mol–1. The reaction is spontaneous at : (Assume that ΔH and ΔS do not vary with temperature)

(1) T > 425 K

(2) All temperatures

(3) T > 298 K

(4) T < 425 K

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4.

(a)           (b)

(c)             (d)

5. Which of the following is dependent on temperature?

(1) Molarity

(2) Mole fraction

(3) Weight percentage

(4) Molality

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6. With respect to the conformers of ethane, which of the following statements is true?

(1) Bond angle changes but bond length remains same

(2) Both bond angle and bond length change

(3) Both bond angles and bond length remains same

(4) Bond angle remains same but bond length changes

7. Name the gas that can readily decolourises acidified KMnO4 solution:

(1) SO2                                                         (2) NO2

(3) P2O5                                                       (4) CO2

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8. It is because of inability of ns2 electrons of the valence shell to participate in bonding that

(1) Sn2+ is oxidising while Pb4+ is reducing

(2) Sn2+ and Pb2+ are both oxidising and reducing

(3) Sn4+ is reducing while Pb4+ is oxidising

(4) Sn2+ is reducing while Pb4+ is oxidising

9. Mechanism of a hypothetical reaction X2 + Y2 2XY is given below :

(i) X2 X + X (fast)

(ii) X + Y2 XY + Y (slow)

(iii) X + Y XY (fast)

The overall order of the reaction will be

(1) 2                                (2) 0

(3) 1.5                             (4) 1

10.

(a) K2 K33 /K1                                      (b) K2 K3/K1

(c) K32 K3/K1                                       (d) K1 K33 /K2

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