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AP EAMCET · Chemistry · Hydrogen

In which of the following reactions, oxygen is not liberated?

  1. A Reaction of \(\mathrm{HOCl}\) with \(\mathrm{H}_2 \mathrm{O}_2\)
  2. B Reaction of acidified \(\mathrm{KMnO}_4\) with \(\mathrm{H}_2 \mathrm{O}_2\)
  3. C Reaction of iodine with \(\mathrm{H}_2 \mathrm{O}_2\) in basic medium
  4. D Reaction of lead sulphide with \(\mathrm{H}_2 \mathrm{O}_2\)
Verified Solution

Answer & Solution

Correct Answer

(D) Reaction of lead sulphide with \(\mathrm{H}_2 \mathrm{O}_2\)

Step-by-step Solution

Detailed explanation

(i) \(2 \mathrm{HOCl}+\mathrm{H}_2 \mathrm{O}_2 \longrightarrow 2 \mathrm{H}_2 \mathrm{O}+\mathrm{Cl}_2(g)+\mathrm{O}_2(g)\) (ii) \(3 \mathrm{H}_2 \mathrm{O}_2+2 \mathrm{KMnO}_4 \longrightarrow 3 \mathrm{O}_2+2 \mathrm{MnO}_2\) \(+2 \mathrm{KOH}+2 \mathrm{H}_2 \mathrm{O}\) (iii)…