Question

a metal salt MX when exposed to light a split up to form metal M and gas X2 when metal M is used to make ornaments with asics shoes used in making bleaching powder the salt MX is used in black and white photography identify the matter and Gadgets to identify Amex write down the chemical reaction man called MX is exposed to sunlight

Answer 1

MX is nothing but  Silver chloride or AgCl₂

Metal M is Silver and X₂ is Chlorine gas

Reaction involved is :

AgCl₂ -------------->   Ag (s) +Cl₂ (g)

This reaction takes place in the presence of sunlight and is called photolytic decomposition.

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