Question
Chemistry Question on Chemical bonding and molecular structure
In NO3− ion number of bond pair and lone pair of electrons on nitrogen atom are :-
A
2,2
B
3,1
C
1,3
D
4,0
Answer
4,0
Explanation
Solution
In NO3− ion number of bond pair and lone pair of electrons on nitrogen atom can be calculated as:
In the structure, there are 2σ, 1π, and one coordinate bond. The coordinate bond is theoretically equal to a double bond, but it behaves differently when an incoming ion approaches.
- A covalent bond type in which both electrons originate from the same atom is known as a coordinate bond, also known as a dative covalent bond.
- Since nitrogen cannot have five bonds, it joins with oxygen to create a coordinate bond.
- The number of bond pairs is assumed to be 1, despite the fact that coordinate bonds share two electrons.
- As a result, there are four bond pairs and no lone pairings.
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