NEET 2002 Chemistry question

In ion number of bond pair and lonepair of electrons on nitrogen atom are :

(1)
(2)
(3)
(4)Correct

Answer: (4)

Solution

In the nitrate ion, nitrogen (five valence electrons) is bonded to three oxygen atoms. In the Lewis structure it forms two single bonds and one double bond ( carries a formal charge of ), i.e. bonds and bond, which makes 4 bond pairs of electrons around nitrogen. All five valence

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Question ID VK-089010