Hydrogen peroxide (H₂O₂) is stored in dark colored bottles because it:

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H₂O₂ decomposes when exposed to light (photochemical decomposition): 2H₂O₂ → 2H₂O + O₂. Light provides energy to break the O–O bond. To prevent decomposition, it is stored in amber or opaque bottles, often with stabilizers like urea or phosphoric acid. Also, traces of heavy metal ions catalyze decomposition. H₂O₂ is a strong oxidizing agent and bleaching agent.

Hydrogen peroxide (H₂O₂) is stored in dark colored bottles because it: MCQ with Answer and Explanation

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