Which substance is serving as a reducing agen | vedclass

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(B) In the given reaction: $14H^{+} + Cr_2O_7^{2-} + 3Ni 	o 2Cr^{3+} + 7H_2O + 3Ni^{2+}$$1$. The oxidation state of $Ni$ increases from $0$ (in eleme

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$Ni$

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(B) In the given reaction: $14H^{+} + Cr_2O_7^{2-} + 3Ni 	o 2Cr^{3+} + 7H_2O + 3Ni^{2+}$$1$. The oxidation state of $Ni$ increases from $0$ (in elemental form) to $+2$ (in $Ni^{2+}$ ion).$2$. Since $Ni$ undergoes oxidation (loss of electrons),it acts as the reducing agent.$3$. The oxidation state of $Cr$ in $Cr_2O_7^{2-}$ decreases from $+6$ to $+3$,meaning $Cr_2O_7^{2-}$ acts as the oxidizing agent.Therefore,the correct option is $(B)$.

Which substance is serving as a reducing agent in the following reaction: $14H^{+} + Cr_2O_7^{2-} + 3Ni \to 2Cr^{3+} + 7H_2O + 3Ni^{2+}$?

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