Which of the following statements is incorrect ? (1) Decreasing order of stability of `O_2, O_ 2- , O _2+` is `O_2+ > O_2 > O_2-` . (2) `He_ 2` molecule does not exist as the bonding and antibonding effects cancel each other. (3) `C_2, O_2 ^2- , and Li_2` are diamagnetic. (4) In `F_2` molecule the energy of `sigma _(2_(p_(z)))` is greater than that of `pi _(2p_(x)), and pi_(2 _(p _(y)))`

Options

A. `O _(2) ^(+) gt O _(2) gt O _(2) ^(-)` decreasing order of bond energy
B. `He _(2)` molecule does not exist as the bonding and antibonding efects cancel each other
C. `C _(2), O_(2) ^(2-) and Li _(2)` are diamagnetic
D. In `F _(2)` molecule, the energy of `sigma _(2_(p_(s)))` is greater than that of `pi _(2p), and pi_(2 _(p _(y)))`