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Questions  

The species having bond order different from that in CO is

a
NO
b
NO+
c
CN
d
N2

detailed solution

Correct option is A

The molecule KO2 is a superoxide. The superoxide ion O2 has paramagnetic nature because there is one unpaired electron in the anti bonding molecular orbital of O2.

In KCN, cyanide ion CN has diamagnetic nature because there are no unpaired electrons in the molecular orbital diagram of CN.

In Na2O2, Be2O2, peroxide ion (O22) has diamagnetic nature because there are no unpaired electrons in the anti bonding molecular orbitals of peroxide ion.

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