What type of hybridisation is involved in the central atom of hydrides of group $16$ elements?

Find the hybridisation of the $C_1$,$C_2$,and $C_3$ labelled carbon atoms in the given molecule: $H-C \equiv C_1-C_2H-C_3H=CH_2$

Explain the tetrahedral structure of $CH_4$ (methane) using its bonding structure.

The $sp^3d^2$ hybridization of the central atom of a molecule leads to which geometry?

Choose the molecules in which hybridization occurs in the ground state?
$(i)$ $BCl_3$ $(ii)$ $NH_3$
$(iii)$ $PCl_3$ $(iv)$ $BeF_2$
The correct answer is

Number of unhybridised orbitals in vinyl acetylene is