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Which of the following can act as a redu...

Which of the following can act as a reducing as well as an oxidising agent ?

A

`H_(3)PO_(4)`

B

`HNO_(3)`

C

`HNO_(2)`

D

`SO_(3)`

Text Solution

Verified by Experts

The correct Answer is:
C
O.N. of P in `H_(3)PO_(4)=+5` (Highest)
O.N. of N is `HNO_(3)=+5` (Highest)
O.N of N in `HNO_(2)=+3`
O.N of N in `HNO_(2)=+3`
O.N of N is `SO_(3)=+6` (Highest)
As O.N of nitrogen in `HNO_(2)` is +3, it means increase or decrease its O.N. Thus `HNO_(2)` acts both as an oxidisingom as well as reducing agent.
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