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Q.

Statement I : HNO2 acts both as an oxidising as well as a reducing agent.Statement II : The Oxidation number of Nitrogen can increase above +3 and can also decrease below +3

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a

Statement I and statement II are correct

b

Statement I is correct and II is incorrect

c

Statement I is incorrect and statement II is correct

d

Statement I&II are incorrect

answer is A.

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Detailed Solution

I) Oxidation statement of 'N' in HNO2 = +3'+3' is the intermediate oxidation state of nitrogen.HNO2 can act like both oxidant and reductantIt can undergo reduction, +3 state to lower ox.stateIt can undergo oxidation, +3 state to higher ox.state
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Statement I : HNO2 acts both as an oxidising as well as a reducing agent.Statement II : The Oxidation number of Nitrogen can increase above +3 and can also decrease below +3