In which reaction is there a change in the ox | vedclass

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(B) In the reaction $2NO_2 + H_2O 	o HNO_2 + HNO_3$,the nitrogen atom in $NO_2$ is in the $+4$ oxidation state. In the product $HNO_2$,the oxidation

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$2NO_2 + H_2O 	o HNO_2 + HNO_3$

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(B) In the reaction $2NO_2 + H_2O 	o HNO_2 + HNO_3$,the nitrogen atom in $NO_2$ is in the $+4$ oxidation state. In the product $HNO_2$,the oxidation state of $N$ is $+3$,and in $HNO_3$,it is $+5$. Since the oxidation state of nitrogen changes from $+4$ to $+3$ and $+5$,this is a redox reaction. Other options represent either dimerization,dissociation,or thermal decomposition without any change in oxidation states.

In which reaction is there a change in the oxidation state?

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