The pairs of species of oxygen and their magnetic behaviours are noted below . Which of the following presents the correct description ?

The pairs of species of oxygen and their magnetic behaviours are noted

1.	The pairs of species of oxygen and their magnetic behaviours are noted below . Which of the following presents the correct description ?
Answer» `O_(2)^(-), O_(2)^(2)` - BONE diamagnetic `O^(+) , O_(2)^(2)`- Both paramagnetic `O_(2)^(+), O_(2)`- Both paramagnetic `O, O_(2)^(2-)` - Both paramagnetic Solution :`O_(2)` has two UNPAIRED electrons in `pi_(2p_(x)) and pi_(2p_(y)) `, i.e.,` pi_(2p_(x))^(1)pi_(2p_(x))^(2)` `O_(2)^(-)` will have one upaired electron , `O_(2)^(2-)` will have no unpaired electron, `O_(2)^(+)` will have one unprired electron, `""_(8) O = 1s^(2) 2s^(2) 2p_(x)^(2) 2p_(y)^(1) 2p_(z)^(1)` and THUS has two unpaired electrons , `O^(+)` will have one unpaired electron . Thus , `O_(2)^(+) and O_(2)` contain unpaired electrons and HENCE will be both paramagnetic .