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Which of the following substances acts a...

Which of the following substances acts as an oxidising as well as a reducing agent?

A

`Na_2O`

B

`SnCl_2`

C

`Na_2O_2`

D

`NaNO_2`

Text Solution

Verified by Experts

The correct Answer is:
D
`NaNO_2` (Sodium nitrite) act both as oxidising as well as reducing agent because in it N atom is in +3 oxidation state (intermediate oxidation state) Oxidising property.
`2NaNO_2 +2KI + 2H_2SO_4 rarr Na_(2)SO_(4) +K_2SO_4 +2NO+2H_2O+I_2`
Reducing property `H_2O_2 +NaNO_(2) rarr NaNO_3 +H_2O`
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