In which of the following species, all the three types of hybrid carbons are present ?

In which of the following species only one type of hybridisation is present ?

In which of the following there is change in the type of hybridization ?

In which of the following molecules , the type of hybridization changes when

In which of the following carbon is not present?

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 species the central atom has the type of hybridization which is not the same as that present in the other three ?