Name three oxoacids of nitrogen.

Question:

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

Solution:

There are three oxoacids of nitrogen.

Nitric acid(HNO3), Nitrous acid (HNO2), Hyponitrous acid (H2N2O1)

+ 3 oxidation is shown by HNO2, Therefore it undergoes disproportion reaction,

To calculate the oxidation state, consider the oxidation state of N is x.

3HNO2 HNO3 + 2NO +H2O

The oxidation state of nitrogen in HNO2 is +3

X + (+1) +2*(-2) = 0, x= +3

The oxidation state of nitrogen in HNO3 is +5

X + (+1) + 3*(-2) = 0, x= 5

The oxidation state of nitrogen in NO is +2

X + (-2) = 0, x =2

Therefore +3 oxidation state changes to +5 and +2 oxidation states.

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