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Which of the following acts as an oxidis...

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

A

`Na_(2)O`

B

`NaO_(3)`

C

`NaNO`

D

`NaNO_(2)`

Text Solution

Verified by Experts

The correct Answer is:
D
`NaNO_(2)` (sodium nitrite) acts both as oxidising agent and reducing agent because the nitrogen atom in it is in `+3` oxidation state (`+3` is intermediate oxidation state for nitrogen)
Oxidising property : `2NaNO_(2)+2KI+2H_(2)SO_(4)rarr NaSO_(4)+K_(2)SO_(4)+2NO+2H_(2)O+I_(2)`
Reducing property : `NaNO_(2)+H_(2)O_(2)rarr NaNO_(3)+H_(2)O`
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