Correct option is B
The Correct answer is
(b) in sunlight. The reaction
2AgCl (s) → 2Ag (s) + Cl₂ (g) involves the decomposition of silver chloride (AgCl) into silver (Ag) and chlorine gas (Cl₂). This reaction takes place when
silver chloride is exposed to sunlight. The sunlight provides the energy needed to break the bonds in AgCl, causing it to decompose. This is an example of a
photochemical reaction, which occurs in the presence of light.
Information Booster: This reaction demonstrates the
photolytic decomposition of silver chloride. When exposed to sunlight, the white color of AgCl slowly turns gray due to the formation of metallic silver. This reaction is often used in photographic films where light exposure leads to image development. The decomposition of AgCl is a key concept in photochemistry and the study of light-induced chemical reactions.