• # question_answer ${{H}_{2}}{{O}_{2}}$ is always stored in black bottles because A) It is highly unstable B) Its enthalpy of decomposition is high C) It undergo autooxidation on prolonged standing D) None of these

Solution :

${{H}_{2}}{{O}_{2}}$ is unstable liquid and decomposes into water and oxygen either on standing or on heating.

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