Identify the reductant in the following react | vedclass

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(A) To identify the reductant,we determine the oxidation states of the elements in the reaction:$H_2S^{-2} + NO_2^{+4} \rightarrow H_2O + NO^{+2} + S^

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$H_2S$

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(A) To identify the reductant,we determine the oxidation states of the elements in the reaction:$H_2S^{-2} + NO_2^{+4} \rightarrow H_2O + NO^{+2} + S^0$In $H_2S$,the oxidation state of $S$ increases from $-2$ to $0$. This is an oxidation process.Since $H_2S$ undergoes oxidation,it acts as the reducing agent (reductant).In $NO_2$,the oxidation state of $N$ decreases from $+4$ to $+2$. This is a reduction process,so $NO_2$ acts as the oxidizing agent.Therefore,$H_2S$ is the reductant.

Identify the reductant in the following reaction:
$H_2S + NO_2 \rightarrow H_2O + NO + S$

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Identify the reductant in the following reaction:$H_2S + NO_2 \rightarrow H_2O + NO + S$