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Question: According to M.O.T. bond order of N<sub>2</sub> is...

According to M.O.T. bond order of N2 is

A

1

B

2

C

3

D

4

Answer

3

Explanation

Solution

Molecular orbital configuration of N2 is σ1s2σ*1s2σ2s2σ*2s22py2πp2yπ2py2σ2px2

∴Bond order

= No.⥄⥄of⥄⥄electrons⥄⥄inbonding⥄⥄orbitalNo.⥄⥄ofelectrons⥄⥄in⥄⥄antibonding⥄⥄orbital2\frac{No. ⥄ ⥄ of ⥄ ⥄ electrons ⥄ ⥄ in ⥄ bonding ⥄ ⥄ orbital - No. ⥄ ⥄ of ⥄ electrons ⥄ ⥄ in ⥄ ⥄ antibonding ⥄ ⥄ orbital}{2}

= 822\frac{8 - 2}{2} = 3