White silver chloride turns _______ in sunlight.

Black Grey Brown None of these

Grey

The correct answer is option 2. Grey. White silver chloride turns grey in sunlight. This is due to the decomposition of silver chloride into silver and chlorine by light.                Sunlight 2AgCl(s)      →        2Ag(s) + Cl2(g) Silver bromide also behaves in the same way.                  Sunlight 2AgBr(s)     →          2Ag(s) + Br2(g)   The above reactions are used in black and white photography.