Top 500+ TNPSC Group 4 Chemistry Questions and Answers - 1

Question: 1

Antimony is

(A) Metalloid

(B) Metal

(C) Non metal

(D) None of these

Question: 2

Alum is water purifier because it

(A) Destroys the pathogenic bacteria

(B) Coagulates the impurities

(C) Softens hard water

(D) Gives taste

Question: 3

Oxygen was discovered by

(A) Priestley

(B) Scheele

(C) Cavendish

(D) Boyle

Question: 4

Cation formation is an

(A) Isothermal process

(B) Endoergic process

(C) Exoergic process

(D) Adiabatic Process

Question: 5

Ozone molecule is

(A) Tetrahedral

(B) Diamagnetic

(C) Linear

(D) Paramagnetic