Which of the following statement is incorrect?

Options

A. `O_(2)` is paramagnetic, `O_(3)` is also paramagnetic
B. `O_(2)` is paramagnetic, `O_(2)^(2-)` is diamagnetic
C. `B_(2)` is paramagnetic, `C_(2)` is also paramagnetic
D. Different obervation is found in their bond length when `NO to NO^(+) and CO to CO^(+)`

Answer

C

Explanation

`O_(2)=`Paramagnetic molecule with 2 unpaired electrons in p-orbital
`O_(3)=`diamagnetic molecule
`B_(2)=`Paramagnetic with 2 unpaired electron in bonding `pi-`orbital
`C_(2)` Diamagnetic molecule ltbtgt `NO to overset(o+)(N)O` (electron removes from antibonding orbital bond length decrease )
`CO to Coverset(o+)(O)`(electron removes from antibonding orbital bond length decrease)