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The bleaching action of chlorine is effective due to the presence of…

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The bleaching action of chlorine is effective due to the presence of

A. Hydrogen chloride

B. Water

C. Air

D. Oxygen

QUICK ANSWER…

B

DETAILS…

In presence of water, chlorine reacts to form a powerful oxidizing agent called hypochlorous acid or chlorine water. Now, hypochlorous acid HOCl can readily give off its oxygen to form hydrochloric acid, thereby bleaching by oxidation.

Now for the right answer to the above question:

  1. Option A is correct.
  2. Option B is incorrect. ethanoic acid not a proper oxidant.
  3. C is incorrect. sulphuric acid, not a proper oxidant.
  4. D is not the correct answer. Hydrogen chloride, not a worthy oxidant.

KEY-POINTS…

You may please note these/this:

RELATED!  Which process(es) is/are involved in the turning of...
  • Your normal washing hypo, is an active derivative of hypochlorous acid.

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/ culled from 2015 JAMB-UTME Chemistry past question 34 /

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