1.

The species in which the central atom uses sp^(2) hybrid orbitals in its bonding is

Answer»

`PH_(3)`
`NH_(3)`
`CH_(3)^(+)`
`SbH_(3)`

Solution :`PH_(3), NH_(3)` and `SbH_(3)` all INVOLVE `sp^(3)` HYBRIDISATION of the central ATOM. Only `CH_(3)^(+)` involves `sp^(2)` hybridisation.


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