How many nodal planes are present in the following `MO's` (Taking Z-axis as the internuclear axis)
(i) `sigma` ls (ii)`sigma^(**)`ls (iii) `sigma2p_(z)`
(iv) `sigma^(**)2p_(z)` (v) `pi 2p_(y)` (vi) `pi^(**)2p_(x)` or `pi^(**)2p_(y)`
Give the number of electrons which occupy the bonding orbitals in `H_(2)^(o+) H_(2)` and `O_(2)^(o+)`
(c ) Why `N_(2)` has greater bond dissociation energey than `N_(2)^(o+)` whereas `O_(2)^(o+)` has greater bond dissociation energy than `O_(2)` .

Explanation

(i) Zero (ii) One (iii) Two (iv) One (v) One (vi) Two
(b ) One two and ten respectively
(c ) `BO` of `N_(2) (3) gt BO of N_(2)^(o+) (2.5)` but`BO` of `O_(2)^(o+) (2.5) gt BO of O_(2) (2)`
`BO prop` Bond dissocation energy .