Question

Which among the following statement(s) is(are) true? ‘Exposure of silver chloride to sunlight for a long duration turns grey due to

1. The formation of silver by the decomposition of silver chloride.
2. sublimation of silver chloride.
3. decomposition of chlorine gas from silver chloride.
4. oxidation of silver chloride.

Options

• (i) only

• (i) and (iii)

• (ii) and (iii)

• (iv) only

Answer 1

(i) only

Explanation - 

Silver chloride is sensitive to sun light and decomposes slowly to give silver which is grey in colour and chlorine.

`2"AgCl" overset("Sun light")(->)underset(("Grey"))(2"Ag") + "Cl"_2`