set 1 MCQ Questions & Answers Detailed Explanation

Question : 1

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 : 2

Night-blindness is caused due to the deficiency of

a) Vitamin C

b) Vitamin A

c) Vitamin D

d) Vitamin B

Question : 3

Which one of the following correctly defines the state of glass?

a) Condensed gas

b) Super cooled liquid

c) Crystalline solid

d) Liquid crystal

Question : 4

The most important raw materials used in the manufacture of cement are

a) transition metal oxides, sodium hydroxide or potassium hydroxide

b) limestone, clay and gypsum

c) potassium nitrate, charcoal and sulphur

d) limestone, sodium carbonate and silica

Question : 5

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 : 6

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

a) B₆

b) B₂

c) B₁

d) B₁₂