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In NO3− ion, number of bond pair and lone pair of electrons on nitrogen atom respectively are:

1. 2, 2
2. 3, 1
3. 1, 3
4. 4, 0

Correct answer: 3, 1

Solution

In the NO3− ion, nitrogen forms three sigma bonds with oxygen atoms and has one lone pair of electrons, as determined by its Lewis structure.

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