Question

silver chloride turns grey to form silver metal.Is it true or false?
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Answer 1

Answer:

Silver chloride which is white colour turns to grey colour silver due to decomposition reaction which occur in presence of sunlight. Such reactions are called as Photo chemical reactions.

Answer 2

Yes,it is true that silver chloride turns grey to form silver metal.

• The silver chloride is a photosensitive chemical substance. That's why,in the exposure to the sunlight,the silver chloride performs a photochemical decomposition reaction.

• In the photochemical decomposition reaction of the silver chloride,the metallic silver and chlorine gas are formed.

• The metallic silver is naturally grey in colour and that's why the photochemically decomposed silver chloride also appears grey in colour.

AgCl (white) + Sunlight -----> Ag (grey) + Cl