A metal salt MX when exposed to light, split up to form metal M and a gas X2. Metal M is used in making ornaments whereas gas X2 is used in making bleaching powder. The salt MX is itself used in black and white photography. (i) Identify metal M and gas X2


#1

A metal salt MX when exposed to light, split up to form metal M and a gas X2. Metal M is used in making ornaments whereas gas X2 is used in making bleaching powder. The salt MX is itself used in black and white photography.
(i) Identify metal M and gas X2?
(ii) Mention the type of chemical reaction involved when salt MX is exposed to light.


#2

(i) The metal is silver (Ag) and gas is chlorine (Cl2).
(ii) The chemical reaction involved is decomposition reaction.