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Hydrogen peroxide is best kept in a refrigerator. Why?

Answer 1

Because it is unstable with respect to disproportionation.........

So let's look at the BALANCED disproportionation response:

#H-stackrel(-I)O-stackrel(-I)O-H(aq) rarr H_2stackrel(-II)O+1/2stackrel(0)O_2#

Some metal salts can significantly accelerate the given reaction, which is why we can keep a bottle of hydrogen peroxide in the refrigerator for an extended period of time because this reaction is kinetically slow and decomposition occurs more slowly at low temperatures.

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Answer 2

Owen Ambrose

Refrigeration slows down the rate of hydrogen peroxide's decomposition and extends its shelf life, so it's best to store hydrogen peroxide in a refrigerator.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.