Question

Why Hydrogen peroxide store in coloured bottles ​

Answer 1

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Hydrogen peroxide is a highly reactive metal that can react with light or heat to produce water. To prevent it's reaction with light and heat to make water it is stored in coloured bottles so that light does'nt pass through it.

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@MissCrazy

Answer 2

Hydrogen peroxide reacts readily with heat and light to form water and oxygen. So, to prevent this reaction, we keep hydrogen peroxide in coloured bottles so that heat and light do not react with the hydrogen peroxide.