In which one of the following species the central atom has the type of hybridisation which is not the same as that present in the other three ?

In which one of the following species the central atom has the type of

1.	In which one of the following species the central atom has the type of hybridisation which is not the same as that present in the other three ?
Answer» `PCl_(5)` `SF_(4)` `I_(3)^(-)` `SbCl_(5)^(2-)` Solution :`PCl_(5) = SP^(3)d , SF_(4) = sp^(3) d, I_(3)^(-) = sp^(3) d`. `SbCl_(5)^(2-) = sp^(3) d^(2)` Thus OPTION (d) is correct.