1.

Which of the following statement is incorrect :

Answer»

`O_2` is paramagnetic , `O_3` is also paramagnetic
`O_2` is paramagnetic , `O_3` is diamagnetic
`B_2` is paramagnetic , `C_2` is also paramagnetic
Different observation is FOUND in their BOND length when NO `to NO^(+)` and `COTOCO^+`

SOLUTION :`O_2`=paramagnetic (2 unpaired electrons in antibonding `pi`-ORBITAL)
`O_3`=diamagnetic
`B_2`=paramagetic (2 unpaired electrons)
`C_2`=diamagnetic molecule.
NO `to NO^(+)`(bond length decreases )
CO `to CO^(+)`(bond length decreases )


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