Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.

NEET Chemistry Solved Question Paper 2014

Multiple Choice Questions

31.

Commercial sample of H₂O₂ is labeled as 10 V. Its % strength is nearly

32.

The 4th higher homologue of ethane is

butane
pentane
hexane
heptane

33.

Among the following, the one which is not a "green house gas", is

N₂O
CO₂
CH₄
O₂

34.

The reagent with which the following reaction is best accomplished is

H₃PO₂
H₃PO₃
H₃PO₄
NaHSO₃

35.
The most likely protonation site in the following molecule is

C-1

C-2

C-3

C-6

C-1

Addition of a proton at C¹ results in the formation of tropylium carbocation (i.e. an aromatic species with more stability due to delocalisation of $π$ electrons), thus, it is the most reactive site towards protonation.

Addition of proton. at any other carbon atom, interupt in the delocalisation of $π$ electrons by disturbing planarity of molecules and hence, makes it less stable. Thus, these all are less reactive towards protonation.

36.

The order of decreasing ease of abstraction of hydrogen atoms in the following molecule

H_a > H_b > H_c
H_a > H_c > H_b
H_b > H_a > H_c
H_c > H_b > H_a

37.

Among the following statements about the molecules X and Y, the one(s) which correct is (are)

X and Y are diastereomers
X and Y are enantiomers
X and Y are both aldohexoses
X is a D-sugar and Y is an L-sugar

38.

The electronic configuration of Cu is

[Ne] 3s², 3p⁶, 3d⁹, 4s²
[Ne] 3s², 3p⁶, 3d¹⁰, 4s¹
[Ne] 3s², 3p⁶, 3d³, 3d⁹, 4s², 4p⁶
[Ne] 3s², 3p⁶, 3d⁵, 4s², 4p⁴

39.

The rate of a certain reaction is given by, rate = k [H⁺]ⁿ. The rate increases 100 times when the pH changes from 3 to 1. The order (n) of the reaction is