Question

why does some liquid medicine kept in dark coloured bottles

Answer 1

Silver compound are kept in dark colours bottles because on getting light they decompose to form new element

Answer 2

because some chemicals and medicines decompose in the presence of light . so in order to protect it,they are stored in coloured bottles . this is because some chemicals are photosensitive meaning that they break down when exposed to light. so that some liquid medicines kept in dark coloured bottles .