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.

Options

A. (i) only
B. (i) and (iii)
C. (ii) and (iii)
D. (iv) only

Answer

A

Explanation

Silver chloride is sensitive to sun light and decomposes slowly to give silver which is grey in colour and chlorine.
`2AgCl overset("Sun light")to underset("(Grey)")(2Ag) + Cl_(2)`