Question

We store silver chloride in a dark coloured bottle because of_______________

• A. To avoid action by sunlight
• B. Undergoes redox reaction
• C. A white solid
• D. None of the above

Answer 1

The correct option is A To avoid action by sunlight

Silver chloride will undergo a photochemical reaction if kept in transparent bottles. It decomposes in the presence of sunlight into silver and chlorine.$2\mathrm{AgCl}\left(s\right)\stackrel{\mathrm{Sunlight}}{\to }2\mathrm{Ag}\left(s\right)+{\mathrm{Cl}}_2\left(s\right)$
Dark coloured bottles interrupt the path of light such that light cannot reach silver chloride in the bottle and its decomposition is prevented.