Which of the following statement is incorrect?

Options

A. Among `O_(2)^(+), O_(2)` and `O_(2^(-))`, the stability decreases as `O_(2)^(+)gt O_(2)gtO_(2)^(-)`
B. `He_(2)` molcecule does not exist as the effect of bonding and anti-bonding orbitals molecuylar orbital of `O_(2)`.
C. `C_(2), O_(2)^(2-)` and `Li_(2)` are diamagnetic
D. In `F_(2)` molecule, the energy of `sigma_(2pz)` is more than `pi_(2px)` and `pi_(2py)`

Answer

d

Explanation

(a) `{:(Stability, O_(2)^(+) gt O_(2) gt O_(2)^(-)), (Bond order , 2.5, 2, 1.5):}`
(b) In all these molecules all electrons are paired in molecular orbitals.