Carbon atoms in diamond are bonded to each other in a configuration:

What type of hybridization is present in the $PCl_{5}$ molecule?

In which of the following molecular shapes must the $d_{z^2}$ orbital not be involved in bonding?

In which one of the following pairs do the two species have identical shape,but differ in hybridisation?

Among $[I_3]^{+}$,$[SiO_4]^{4-}$,$SO_2Cl_2$,$XeF_2$,$SF_4$,$ClF_3$,$Ni(CO)_4$,$XeO_2F_2$,$[PtCl_4]^{2-}$,$XeF_4$,and $SOCl_2$,the total number of species having $sp^3$ hybridised central atom is. . . . .

In the given reaction,the number of $sp^{2}$ hybridised carbon atoms in compound '$X$' is $.....$