Which one of the following gases is readily soluble in water at room temperature
(A) Chlorine
(B) Nitrogen
(C) Ammonia
(D) Carbon dioxide
Bleaching action of chlorine is by________
(A) Oxidation
(B) Reduction
(C) Decomposition
(D) Hydrolysis
What is a mixture of Potassium Nitrate Powdered Charcoal and Sulphur called
(A) Paint
(B) Glass
(C) Gun Powder
(D) Cement
The chemical used as a fixer in photography is__________
(A) sodium sulphate
(B) borax
(C) sodium thiosulphate
(D) ammonium sulphate