In which of the following ionization processes, the bond order has increased and the magnetic behaviour has changed? : `N_2rarrN_2^(+)` , `C_2rarrC_2^(+)`, `NO rarr NO^(+)`, `O_2 rarr O_2^(+)`

Options

A. `N_2 to N_2^+`
B. `C_2 to C_2^+`
C. `NO to NO^+`
D. `O_2 to O_2^+`

Answer

C

Explanation

The electron has been removed from antibonding orbital, so bond order increases and nature changes from paramagnetic to diamagnetic.