Question

Which among the following statement is 'True'? Exposure of Silver Chloride to sunlight for a long duration turns 'Grey' due to:

(a). The formation of silver by decomposition of silver chloride.
(b). The formation of silver by decomposition of silver chloride, and Decomposition of chlorine gas from silver chloride.
(c). Sublimation of silver chloride, and Decomposition of chlorine gas from silver chloride.
(d). Oxidation of silver chloride.

Answer 1

Answer:

c) is true

Explanation:

2AgCl----(sunlight)---->2Ag+Cl2

therefore a Decomposition reaction where silver chloride decomposes to form silver which is 'grey' in color.

Answer 2

Answer:

(b). The formation of silver by decomposition of silver chloride, and Decomposition of chlorine gas from silver chloride.

Explanation:

Due to the heat of the sunlight, Silver Chloride (AgCl) decomposes to from Silver(Ag) and Chlorine(Cl) gas is released into the atmosphere.

The reaction can be presented as follows:

AgCl →2Ag+ Cl₂