Question

Medicines and chemicals are stored in dark colored bottles to prevent their:

• A. photochemical decomposition
• B. electrolysis
• C. thermochemical reactions
• D. neutralisation

Answer 1

The correct option is A

photochemical decomposition

Some chemicals and medicines decompose in the presence of sunlight. So in order to protect it, they are stored in dark colored bottles. They can undergo photochemical decomposition which can change the chemical composition entirely and hence making it unfit for any use.