set 1 MCQ Questions & Answers Detailed Explanation

Question : 1

Match List-I with List-II:

a) 2 1 4 3

b) 1 2 3 4

c) 1 2 4 3

d) 2 1 3 4

Question : 2

Graphite was in news recently. What is its importance?

1. It is a two-dimensional material and has good electrical conductivity.
2. It is one of the thinnest but strongest materials tested so far.
3. It is entirely made of silicon and has high optical transparency.
4. It can be used as conducting electrodes required for touch screens, LCD’s and organic LED’s.

a) 1, 2, 3 and 4

b) 1 and 2

c) 3 and 4

d) 1, 2 and 4

Question : 3

Easily soluble in water

a) Nitrogen

b) Ammonia

c) Carbon

d) Iodine

Question : 4

Out of the following which is not an alloy?

a) Copper

b) Bronze

c) Steel

d) Brass

Question : 5

By which process, Alum cleans the muddy water?

a) Dialysis

b) Coagulation

c) Absorption

d) Adsorption

Question : 6

Water is a good solvent of ionic salts because

a) It has no colour

b) It has a high specific heat

c) It has a high boiling point

d) It has a high dipole moment