Which of the following is a redox reaction ? - Vidyadip

MCQ

Which of the following is a redox reaction ?

A
$H_2SO_4$ with $NaOH$
B
In atmosphere, $O_3$ from $O_2$ by lightening
✓
Nitrogen oxides from nitrogen and oxygen by lightening
D
Evaporation of $H_2O$

✓

Answer

Correct option: C.

Nitrogen oxides from nitrogen and oxygen by lightening

c
$N_2 + O_2 \to 2NO,$ $O.N.$ of $N$ changes from $0$ to $+2$ (oxidation) and $O.N.$ of $O$ changes from $0$ to $-2$ (reduction).

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