Question

What change in colour is observed when white silver chloride is left exposed to sunlight to?

Answer 1

When white silver chloride exposed to sunlight it produces to black metallic colured silver along with liberation of chlorine gas.

Answer 2

Answer:

Silver chloride (AgCl) is white in colour and elemental silver (Ag) is grey in colour. Hence, the colour change observed when white silver chloride is left exposed in sunlight is from white to grey and the type of chemical reaction is photolytic decomposition reaction or photolysis.