In which of the following ionization processes, the bond order has increased and the magnetic character has changed ?

Options

A. `NO to NO^(+)`
B. `O_(2)to O_(2)^(+)`
C. `N_(2)to N_(2)^(+)`
D. `C_(2)to C_(2)^(+)`

Answer

A

Explanation

(A) NO (B.O. = 2.5, paramagnetic)
`rarr NO^(+)` (B.O. = 3, diamagnetic)
(B) `O_(2)` (B.O. = 2, paramagnetic)
`rarr O_(2)^(+)` (B.O. = 2.5, paramagnetic)
(C ) `N_(2)` (B.O. = 3, diamagnetic)
`rarr N_(2)^(+)` (B.O. = 2.5, paramagnetic)
(D) `C_(2)` (B.O. = 2, diamagnetic)
`rarr C_(2)^(+)` (B.O. = 1.5, paramagnetic)
Correct Answer is (A).