Which statements are correct for the peroxide ion-

1.	Which statements are correct for the peroxide ion-
Answer» it has five completely filled anti-bonding molecular orbitals it is DIAMAGNETIC it has bond order one It is isoelectronic with neon Solution :MO electronic configuration of `O_(2)^(2-)` (peroxide ion): `(sigma_(1s))^(2)(sigma_(1s)^())^(2)(sigma_(2s))^(2)(sigma_(2s)^())^(2)(sigma_(2p_(z)))^(2)` `(pi_(2px))^(2)(pi_(2py))^(2)(pi_(2p_(x))^())^(2)(pi_(2p_(y))^())^(2)` bond order`=(N_(b)-N_(a))/(2)=(10-8)/(2)=1` THUS, there is no unpared electron present for which it becomes diamagnetic. its total no. of electrons=18 (same as that of Ne).

Discussion