Why acids are kept in dark bottle? Share with your friends Share 0 Madhu Mitra answered this Because some?chemicals?and medicines decompose n react in the presence of light .So in order to protect it , they are?stored?in coloured?bottles. 0 View Full Answer Samruddhi Madhamshettiwar answered this To prevent them from sunlight as it causes side effects if the comes in contact with sunlight Hope it helps 1