Top 500+ TNPSC Group 4 Chemistry Questions and Answers - 3

Question: 11

All acids contain the element

(A) Nitrogen

(B) Oxygen

(C) Helium

(D) Hydrogen

Question: 12

Production of chlorofluorocarbons (CFC) gas which is banned in India, was used in which of the following domestic products?

(A) Refrigerator

(B) Cooking gas

(C) Tubelight

(D) Television

Question: 13

What is a mixture of potassium nitrate, powdered charcoal and sulphur called?

(A) Gun powder

(B) Paint

(C) Cement

(D) Glass

Question: 14

The setting of plaster of Paris can be catalyzed by adding

(A) Alum

(B) Borax

(C) Lead oxide

(D) Sodium chloride

Question: 15

Mason was discovered by

(A) Anderson

(B) Seaburg

(C) Yukawa

(D) Powell