Published by:
CGP EDU Academic Team
Published on: August 13, 2026
Which of the following acts as an oxidising as well as reducing agent?
Text Solution
Verified by ExpertsThe correct answer is:
D
HNO 2
As in HNO 2 , N is in +3 oxidation state but nitrogen can have oxidation states from -3 to +5 so it is in between the maximum and minimum oxidation state hence it can either get reduced or oxidized, depending on the conditions. It means it can act both as an oxidizing and a reducing agent. It can work both as oxidising as well as reducing agent.
(I) As an oxidising agent:
HNO 2 + 2H + + e - 
NO + H 2 O
(II) As reducing agent:
HNO 2 + H 2 O 
+ 3H + + 2e -
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