Question

Give a count test and balance equation for white colour silver cholide turn gray in sunlight

Answer 1

silver chloride is white in colour but when placed in sunlight it gets energy from sun and gets decomposed. this process is called photolytic decomposition or black and white photography.
The chemical reaction can be expresses as:
silver chloride –sunlight–--------= silver + chloride
chemical equation
2AgCl = 2Ag + Cl2..