The following reactions show the H _ 2 O _ 2 behaviour in A and B reactions as (1) Pb S _ ( s ) + 4 H _ 2 O _ 2(aq) → PbS O _ 4(s) + 4 H _ 2 O _ (l) (2) HOCl + H _ 2 O _ 2 → H _ 3 O ^ + + C l ^ - + O _ 2

Question

Quantrex Academy · Accepted Answer

Correct answer: C. oxidising in acidic medium and reducing in acidic medium

Hydrogen peroxide oxidies lead sulphide to lead sulphate and itself gets reduced. Thus,

{H}_{2}{O}_{2}

acts as an oxidising agent in acidic medium.

Hydrogen peroxide reduces hypochlorous acid to chloride ion in acidic medium and itself gets oxidised.

Thus,

{H}_{2}{O}_{2}

acts as a reducing agent in acidic medium.

The following reactions show the H _ 2 O _ 2 behaviour in A and B...

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