Which of the following reaction (s) is/are disproportionati…

Chemistry Redox Reaction General Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 13, 2026

Which of the following reaction (s) is/are disproportionation reactions ?

P 4 + NaOH ⎯→ NaH 2 PO 2 + PH 3

Cl 2 +NaOH ⎯→ NaCl + NaClO 3 + H 2 O

NH 4 NO 2 ⎯→ N 2 + 2H 2 O

Pb(NO 3 ) 2 ⎯→ PbO + NO 2 + O 2

Text Solution

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The correct answer is:

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(a, b)

P from O.S. equal to zero is simultaneously oxidised and reduced — disproportionation reaction.

Cl from O.S. equal to zero is simultaneously oxidised and reduced — disproportionation reaction.

NH 4 NO 2 ⎯→ N 2 + 2H 2 O is not the redox reaction.

Oxygen is oxidised where as N is reduced , therefore it is not the disproportionation reaction

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