A) NO
B) CO
C) \[{{O}_{2}}\]
D) \[{{B}_{2}}\]
Correct Answer: B
Solution :
\[\text{NO}\Rightarrow \]One unpaired electron is present in \[{{\pi }^{*}}\] molecular orbital. \[\text{CO}\Rightarrow \]No unpaired electron is present \[{{\text{O}}_{2}}\Rightarrow \]Two unpaired electrons are present in \[{{\pi }^{*}}\]molecular orbitals. \[{{\text{B}}_{\text{2}}}\Rightarrow \]Two unpaired electrons are present in \[\pi \] bonding molecular orbitals.
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