Silver chloride turns ______ in sunlight.

Correct option is B

The correct answer is (b) Grey.
· Silver chloride (AgCl) turns grey when exposed to sunlight due to a chemical reaction called photodecomposition.
· In this process, sunlight causes the silver chloride to break down into silver (Ag) and chlorine (Cl₂) gas.
· The grey color is a result of the formation of metallic silver, which is deposited on the surface of the silver chloride.
· This reaction is sensitive to light and is used in the production of photographic films, where light exposure alters the chemical composition of silver halides.
· The overall reaction can be written as: 2AgCl (s) → 2Ag (s) + Cl₂ (g) (Silver chloride decomposes into silver and chlorine under sunlight.) • This phenomenon is an example of a photochemical reaction.
Additional Knowledge:
· Orange: Silver chloride does not turn orange; there is no such reaction associated with this color.
· Grey: This is the correct color change when silver chloride is exposed to sunlight due to the formation of metallic silver.
· Red: Silver chloride does not turn red; this color is not related to its decomposition process.
· White: Silver chloride is white in its original form, but it changes to grey upon exposure to light.