Question

What happens when silver chloride is exposed to sunlight? Give one practical application of this reaction. Write the equation also.

Answer 1

silver chloride turns grey in sunlight to form silver metal. this is due to the decomposition of silver chloride into silver and chlorine by light. equation:
2Ag---------> 2Ag + cl^2 ( when placed in sunlight)
the above reaction is used in black and white photography

Answer 2

HI !

When silver chloride  is kept in sunlight , the substance undergoes decomposition reaction [ photo chemical decomposition ] and form simpler substances , with the evolution of gas.

Silver chloride :-

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


Here , the color of silver chloride ( white in color) changes to grey color [ silver ]

This chemical  reaction is used in black and white photography.