set 1 MCQ Questions & Answers Detailed Explanation

Question : 1

What is the composition of nitrolim – a chemical fertilizer ?

a) Calcium carbide and carbon

b) Calcium carbide and nitrogen

c) Nitrogen and limestone

d) None of these

Question : 2

Soaps are

a) sodium salts of trihydroxy alcohols

b) sodium salts of fatty acids containing carbon atoms 16 to 18

c) sodium salts of sulphuric acids containing carbon atoms 10 to 16

d) none of these

Question : 3

The reaction that takes place in soap making is called saponification. Basically soap is sodium or potassium salts of

a) long chain dicarboxylic acids

b) glycerol

c) long chain monocarboxylic acids

d) long chain tricarboxylic acids

Question : 4

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 : 5

Night-blindness is caused due to the deficiency of

a) Vitamin C

b) Vitamin A

c) Vitamin D

d) Vitamin B

Question : 6

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