Question

Name three oxoacids of nitrogen. Write the disproportionation reaction of that
oxoacid of nitrogen in which nitrogen is in +3 oxidation state.


NCERT Class XII
Chemistry - Exemplar Problems

Chapter 7. The p-block elements

Answer 1

nitous acid,nitric acid and hyponitrous acid(H2N2O2)

Answer 2

Oxoacids of nitrogen and disproportionation reaction

• The three oxoacids of nitrogen are as follows:

1. Hyponitrous acid - $H_2N_2O_2$
2. Nitrous acid - $HNO_2$
3. Nitric acid - $HNO_3$

• Among the above mentioned three oxoacids of nitrogen, nitrous acid with chemical formula $HNO_2$.
• The nitrogen in these compounds exhibits +3 oxidation state.
• The disproportionation reaction exhibited by this compound is as follows:

$3 H N O_{2} \stackrel{\text { Disproportionation }}{\longrightarrow} \mathrm{HNO}_{3}+\mathrm{H}_{2} \mathrm{O}+2 \mathrm{NO}$

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