Question

Which of the following statements is true about hybridisation?

• A. The hybridised orbitals have different energies for each orbital.
• B. The number of hybrid orbitals is equal to the number of atomic orbitals that are hybridised.
• C. Hybrid orbitals form multiple bonds.
• D. The orbitals with different energies undergo hybridisation.

Answer 1

Answer: (B)

The number of hybrid orbitals is equal to the number of atomic orbitals that are hybridised.

In hybridization, the number of hybrid orbitals is equal to the number of atomic orbitals that are hybridized.

Let's take an example:- $C{H}_4$

Carbon electronic configuration is $2S^2$$2P^2$ in ground state, in excited state one electron of $s$ orbital move into $p$ orbital and thus we get $4$ unpaired electrons in atomic orbital which will take part in bonding,

The hybridisation of carbon in $C{H}_4$ is $s{p}^3$ , means $4$ hybrid orbitals. (one $s$ orbital and three $p$ orbitals)

So the correct option is [B]