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Mineral acids are usually added to commercial hydrogen peroxide to…

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Mineral acids are usually added to commercial hydrogen peroxide to

A. Oxidize it

B. decompose it

C. minimize its decomposition

D. reduce it to water and oxygen

QUICK ANSWER…

C

DETAILS…

Hydrogen peroxide is a volatile higher oxide of hydrogen which can easily be decomposed on exposure to its lower oxide called water.

2H₂O₂ = 2H₂O + O

In the industry, to prevent or slow the rate at which this decomposition is occurring, mineral acids are often added.

Now for the right answer to the above question:

  1. Option A is incorrect. Hydrogen peroxide cannot be further oxidized, at least in practice.
  2. Option B is incorrect. Decomposing hydrogen peroxide is not possibly desirable, and so, no one would possible seek to do so.
  3. C is correct. mineral acids are added to minimize its decomposition and to preserve it.
  4. D is not the correct answer. Not adding mineral acids does reduce it to water and oxygen, however, adding mineral acids stops that.

KEY-POINTS…

You may please note these/this:

  • Hydrogen peroxide in your local chemist and drug shops contain traces of mineral acids which prevents them from turning into water and oxygen too quickly.

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/ culled from 2015 JAMB-UTME Chemistry past question 35 /

Mineral acids are usually added to commercial hydrogen peroxide to... » QuizTablet
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