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JEE Main 202124 FebruaryMorning Shift
Exam
JEE Main
Year
2021
Date
24 February
Shift
Morning Shift
Subject
Chemistry
Chapter
Redox Reactions

JEE Main 2021 · 24 February · Morning Shift · Chemistry · Redox Reactions

(A) HOCl + H _ 2 O _ 2 → H _ 3 O ^ + + Cl ^ - + O _ 2 (B) I _ 2 + H...

(A) HOCl+H2O2→H3O++Cl−+O2HOCl + {H}_{2}{O}_{2} \to {H}_{3}{O}^{+} + {Cl}^{-} + {O}_{2}

(B) I2+H2O2+2OH−→2I−+2H2O+O2{I}_{2} + {H}_{2}{O}_{2} + 2{OH}^{-} \to 2{I}^{-} + 2{H}_{2}O + {O}_{2}

Choose the correct option.

Options

  1. AH2O2{H}_{2}{O}_{2} act as oxidizing and reducing agent respectively in equations (A)( A ) and (B).( B ) .
  2. BH2O2{H}_{2}{O}_{2} acts as oxidising agent in equations (A)( A ) and (B).( B ) .
  3. CH2O2{H}_{2}{O}_{2} acts as reducing and oxidising agent respectively in equations (A)( A ) and (B).( B ) .
  4. DH2O2{H}_{2}{O}_{2} acts as reducing agent in equations (A)( A ) and (B).( B ) .

Correct answer

D. H2O2{H}_{2}{O}_{2} acts as reducing agent in equations (A)( A ) and (B).( B ) .

Step-by-step solution

In (A)( A ) reduction of HOClHOCl occurs, so it will be an oxidising agent hence H2O2{H}_{2}{O}_{2} will be a reducing agent.

In (B)( B ) reduction of I2{I}_{2} occurs, so it will be an oxidising agent and H2O2{H}_{2}{O}_{2} will be a reducing agent.

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