Ncert Exercises & Solutions

In ${NO}_{3}^{-}$ ion, the number of bond pairs and lone pairs of electrons exhibited by nitrogen atom is:

1. 2, 2

2. 3, 1

3. 1, 3

4. 4, 0

Hint: In $NO_{3}^{-}$, nitrogen covalency is four.

The lewis structure of

{NO}_{3}^{-}

is as follows:

A) Draw lewis structures for CO2, SO2, AND NO3-. B) Give the electron pair geometry and the molecular geometry of the three species from part A) according to VSEPR. C) Are CO2

In N-atom, the number of valence electrons is 5. Nitrogen forms one double bond, one coordinate bond, and one single bond with oxygen atoms present in

{NO}_{3}^{-}

From the structure, it is clear that nitrogen has

Number of bond pairs (or shared pairs) = 4

Number of lone pairs = 0

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