Question

\[\ce{H2O2}\] is always stored in black bottles because ______. 

Options

• it has a very high dielectric constant

• its enthalpy of decomposition is high

• it undergoes auto-oxidation on prolonged standing

• it evaporates quickly

Answer 1

\[\ce{H2O2}\] is always stored in black bottles because it undergoes auto-oxidation on prolonged standing.

Explanation:

\[\ce{H2O2}\] is an unstable liquid that breaks down into water and oxygen when exposed to sunshine, heat, etc. Consequently, it is kept in a black bottle.