Question

In ${N{O}_3}^{-}$ ion number of bond pair and the lone pair of electrons on nitrogen atom are:

• A. $2,2$
• B. $3,1$
• C. $1,3$
• D. $4,0$

Answer 1

The correct option is D $4,0$

In $N{O}_3^{-}$ ions, to know the no. of bond pairs

$N{O}_3^{-}=[5+6(3)+1]=24$ electrons

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$\to$The central atom, Nitrogen has $4$ bonded pairs with the $3$ oxygen atoms $(3\sigma ,1\pi )$

$\to$Nitrogen does not have any lone pairs of electrons.

Correct ans:- Bond pairs and lone pairs of electrons on nitrogen atom are $4$ and $0$