Question

4. Which among the following statement(s) is (are) true? Exposure of silver
chloride to sunlight for a 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​

Answer 1

Exposure of silver chloride to sunlight for a long duration turns grey due to (i)the formation of silver by decomposition of silver. When silver chloride is exposed to sunlight, it is decomposed to form silver. During this reaction, white silver chloride changes into greyish white silver metal. This is also known as photolytic decomposition reaction as it takes place in the presence of sunlight.

HOPE IT HELPED YOU