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

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

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

In which one of the following molecules, the central atom has expanded octet?

In which of the following species the central atom is sp^3d^2 hybridised?