What is the number of molecular orbitals obtained by mixing of two atomic orbitals ?
(b) Out of `F_(2)` and `OF` which of these molecules is (are) paramagnetic
(ii) Which should be more stable towards dissociation into atoms `OF` or `F_(2)`
(c ) Explain why `NO^(o+)` is more stable towards dissociation into atoms than `NO` whereas `CO^(o+)` is less stable than `CO`
(d) Predict whether `He_(2)^(o+)` ion in its electronic ground state is stable towards dissociation into he and `He^(o+)` .

Explanation

Two
(b) `OF` is paramagnetic since it has one unpaired antibonding electron
(c ) `NO^(o+)` has lost an antibonding electron Whereas `CO^(o+)` has lost a bonding electron
(d) It should be stabel because it has one more bonding electron the antibonding .