Question

Why we store silver chloride in dark coloured bottles ?

Answer 1

Compounds Like Silver Chloride are light sensitive. Andthey may react to light very fast and lose its properties. That's why they are to be stored in dark bottles to prevent the entry of light. AgCl is converted to molecular Ag aoms by the effect of photons of light.

Answer 2

It is because silver chloride undergoes photolytic decomposition . i.e. , decomposition in the presence of sunlight . If it is kept in the presence of sunlight , then it undergoes decomposition and decomposes into silver and chlorine . To prevent photolytic decomposition , it is kept in dark coloured bottles .