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Question

H2O2 is:
  1. an oxiding agent
  2. both oxidising and reducing agent
  3. reducing agent
  4. none of the above

A
an oxiding agent
B
none of the above
C
both oxidising and reducing agent
D
reducing agent
Solution
Verified by Toppr

When H2O2 serves as an oxidizing agent, the oxygen of hydrogen peroxide (that is present in 1 oxidation state) is reduced to H2O(2 oxidation state).

H2O2+2H++2e2H2O

When H2O2(1 oxidation state) serves as a reducing agent, the oxygen of H2O2 is oxidized to O2 ( 0 oxidation state) and bubbles are noticed. As a reducing agent:

2KMnO4+5H2O2+3H2SO4K2SO4+5O2+2MnSO4+8H2O

Hydrogen peroxide acts as both a reducing and an oxidizing agent.

Hence, option B is correct.

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