More Classes

5th Class
6th Class
7th Class
8th Class
9th Class
10th Class
11th Class
12th Class
NAT I
NAT II
CSS
IQ
General Knowledge
MDCAT
ECAT
GAT General
GAT Subject

NAT I Engineering Chemistry MCQs With Answers

Question # 1

Which of the following substances is used as an antiknock compound?

Choose an answer

Tetraethyl lead

Lead tetrachloride

Lead acetate

Ethyl acetate

Skip

Question # 2

The most reactive compound for electrophilic nitration will be

Choose an answer

Benzyl chloride

Benzoic acid

Nitrobenzene

Chlorobenzene

Skip

Question # 3

Hess's law deals with

Choose an answer

Changes in heat or reaction

Rate of reaction

Equilibrium constant

Influence of pressure on volume of a gas

Skip

Question # 4

Addition of iron filling to CuSO₄solution caused precipitation of Cu awing to the

Choose an answer

Reduction of Cu²⁺

Oxidation of Cu²⁺

Reduction of Fe

Reduction of Fe³⁺

Skip

Question # 5

Which of the following process is used to separate insoluble particles from liquids?

Choose an answer

Separation

Filtration

Crystallization

Condensation

Skip

Question # 6

The disaccharide present in milk is

Choose an answer

Sucrose

Maltose

Lactose

Cellobiose

Skip

Question # 7

Which quantum number is sufficient to describe the electron is hydrogen atom?

Choose an answer

Skip

Question # 8

Which is not a colligative property?

Choose an answer

Osmotic pressure

Lowering of vapour pressure

Depression of freezing point

Elevation of boiling point

Skip

Question # 9

For the reaction

2A(g) + B(g) 3C(g) + D(g)

two moles each of A and B were taken into a flask The following must always be true when the system attained equilibrium

Choose an answer

[A] = [B]

[A] < [B]

[B] = [C]

[A] > [B]

Skip

Question # 10

In a crystal a ≠ b ≠ c, a = γ = 90° and β ≠ 90°, it is

Choose an answer

Monoclinic

Rhombic

Trigonal

Tetragonal

Skip

Question # 11

If N_A is Avogadro's number then number of valence electrons in 4.2 g of nitride ions N^3-is

Choose an answer

2.4 N_A

4.2 N_A

1.6 N_A

3.2 N_A

Skip

Back