In which reaction there is a change in oxidation state - Vidyadip

MCQ

In which reaction there is a change in oxidation state

A
$2N{O_2}\, \to \,\,{N_2}{O_4}$
✓
$2N{O_2} + {H_2}O\, \to \,HN{O_2} + HN{O_3}$
C
$N{H_4}OH\, \to \,NH_4^ + + O{H^ - }$
D
$CaC{O_3}\, \to \,CaO + C{O_2}$

✓

Answer

Correct option: B.

$2N{O_2} + {H_2}O\, \to \,HN{O_2} + HN{O_3}$

(b) $\mathop {2N{O_2}}\limits^{ + 4} + {H_2}O \to HN{O_2} + \mathop {HN{O_3}}\limits^{ + 5} $. In this reaction oxidation state changes.

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