`HNO_(2)` acts both as reductant and as oxidant, while `HNO_(3)` acts only as oxidant. It is due to their

HNO_(3) acts as

HNO_(2) acts as

HNO_(2) acts as

HNO_3 acts as .

Assertion (A): HNO_(3) acts only as an oxidising agent, while HNO_(2) acts both as an oxidising agnet and a reducing agent. Reason (R ): The oxidation number of N in HNO_(3) is mximum.

Assertion (A): HNO_(3) acts only as an oxidising agent, while HNO_(2) acts both as an oxidising agnet and a reducing agent. Reason (R ): The oxidation number of N in HNO_(3) is mximum.

H_(2)S acts only as reductant, whereas SO_(2) acts as oxidant and reductant both .