set 1 MCQ Questions & Answers Detailed Explanation

Question : 1

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

a) B₆

b) B₂

c) B₁

d) B₁₂

Question : 2

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 : 3

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 : 4

The major component used in preparation of different types of glasses is

a) calcium silicate

b) sodium borate

c) silica

d) sodium silicate

Question : 5

Which one of the following is a vitamin?

a) Oxalic acid

b) Ascorbic acid

c) Benzoic acid

d) Formic acid

Question : 6

Which one of the following contains cobalt ?

a) Vitamin A

b) Vitamin B₁₂

c) Riboflavin

d) Vitamin B₆