set 1 MCQ Questions & Answers Detailed Explanation

Question : 1

Glass is actually

a) an elastic solid

b) an ionic solid

c) a crystalline solid

d) a vitrified liquid

Question : 2

Flint glass is obtained from which of the following ?

a) Sodium aluminum borosilicate

b) Sand, red lead and potassium carbonate

c) Zinc and barium borosilicate

d) Pure silica and zinc oxide

Question : 3

Night-blindness is caused due to the deficiency of

a) Vitamin C

b) Vitamin A

c) Vitamin D

d) Vitamin B

Question : 4

The property of plasticity is shown by clay , when it is

a) dried at room temperature after kneading

b) heated strongly

c) mixed with proper proportion of water

d) glazed

Question : 5

The aqueous solution of one of the following vitamins is dark in colour

a) B₆

b) B₂

c) B₁

d) B₁₂

Question : 6

The principle of cleaning by soap is

a) viscosity

b) floatation

c) surface tension

d) elasticity