set 1 MCQ Questions & Answers Detailed Explanation

Question : 1

Night-blindness is caused due to the deficiency of

a) Vitamin C

b) Vitamin A

c) Vitamin D

d) Vitamin B

Question : 2

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 : 3

Washing soaps are potassium and sodium salts of

a) mineral acids

b) fatty acids

c) dicarboxylic acids

d) None of these

Question : 4

Glass is actually

a) an elastic solid

b) an ionic solid

c) a crystalline solid

d) a vitrified liquid

Question : 5

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 : 6

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