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NEET levelSingle correct optionDifficulty 1 of 3cb111

According to molecular orbital theory, the bond order of $N X_{2}$ is

A1
B2
C3
D2.5

Answer: C

N X_{2}

has 10 valence electrons: 8 in bonding MOs (

σ 2 s

,

π 2 p_{x}

,

π 2 p_{y}

,

σ 2 p_{z}

) and 2 in antibonding

σ^{*} 2 s

. Bond order

= (8 - 2) /2 = 3

.

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