The number of electrons required to balance the given equation is
$N O_{3}^{-} + 4 H^{+} + e^{-} ⟶ 2 H_{2} O + N O$

5

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2

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3

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4

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Solution

The correct option is C $3$
In this equation, all atoms are balanced. However, charges are not balanced. On right hand side, the sum of the charges is $0$ . On left hand side, the sum of charges will be $0$ if $3$ electrons are present. Hence, $3$ elctrons will be required to balance the reaction.

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Similar questions

N O_{3}^{-} + 4 H^{+} + e^{-} \to 2 H_{2} O + N O

N O_{3}^{-} + 4 H^{+} + e^{-} \to 2 H_{2} O + N O

N O_{3}^{-} + 4 H^{+} + e^{-} ⟶ 2 H_{2} O + N O

N O_{3}^{-} + 4 H^{+} + e^{-} ⟶ 2 H_{2} O + N O

3 F e^{2 +} + 4 H^{+} + N O_{3}^{-} ⟶ 3 F e^{3 +} + 2 H_{2} O + N O

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