(C) To balance the equation $NO_3^- + 4H^+ + x e^- \to 2H_2O + NO$,we must balance both the atoms and the charge.In $NO_3^-$,the oxidation state of $N

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(C) To balance the equation $NO_3^- + 4H^+ + x e^- \to 2H_2O + NO$,we must balance both the atoms and the charge.In $NO_3^-$,the oxidation state of $N$ is $+5$.In $NO$,the oxidation state of $N$ is $+2$.The change in oxidation state is $5 - 2 = 3$.Therefore,$3$ electrons are required to reduce $N^{+5}$ to $N^{+2}$.The balanced equation is $NO_3^- + 4H^+ + 3e^- \to 2H_2O + NO$.

Class 11 Chemistry Redox Reactions Redox reaction and Method for balancing Redox reaction

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The number of electrons required to balance the following equation $NO_3^- + 4H^+ + x e^- \to 2H_2O + NO$ is

IIT 1991 All IIT

A
$5$
B
$4$
C
$3$
D
$2$

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Redox Reactions

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Redox reaction and Method for balancing Redox reaction

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The number of electrons required to balance the following equation $NO_3^- + 4H^+ + x e^- \to 2H_2O + NO$ is

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