Which among the following statement(s) is(are) true? Silver chloride on exposure to sunlight for long duration turns grey due to
(i) the formation of silver by decomposition of silver chloride
(ii) sublimation of silver chloride
(iii) decomposition of chlorine gas from silver chloride
(iv) oxidation of silver chloride
Silver Chloride (AgCl) undergoes photo-decomposition reaction in presence of sunlight to form Silver (Ag) and Chlorine gas (Cl2) as follows:
A decomposition reaction is a reaction in which a compound breaks into two or more simpler molecules or compounds. A photo-decomposition reaction is one which takes place in presence of light. The grey color obtained in the product is due to the silver formed which is greyish in color.
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