Question

Which types of atomic orbitals of the central atom mix to form hybrid orbitals in

(a) SiCIH₃ ; (b) CS₂ ; (c) SCI₃F ; (d) NF₃ ?

Short answer

1. One 3s and three 3porbital
2. One 2s and one 2porbital
3. One 3sand three 3porbital
4. One 2s and three 2porbital

Step-by-step solution

For SiCIH3

Hybridization is the concept of mixing atomic orbitals and the formation of new hybrid orbitals.

The central silicon atom forms sp³hybridized orbitals in which one 3sand three 3p orbitals are mixed to form four hybrid orbitals.

Hence, one s and three p atomic orbitals of silicon mix to form sp³ hybrid orbitals.

For CS2

The central carbon atom forms sp hybridized orbitals in which one 2s and one 2p orbital is mixed to form two hybrid orbitals.

Hence, one s and one p atomic orbitals of carbon mix to form sp hybrid orbitals.

For SCI3F

The central silicon atom forms sp³hybridized orbitals in which one 3s and three 3p orbitalsare mixed to form four hybrid orbitals.

Hence, one s and three p atomic orbitals of silicon mix to form sp³ hybrid orbitals.

For NF3

The central nitrogen atom forms sp³ hybridized orbitals in which one 2s and three 2p orbitalsare mixed to form four hybrid orbitals.

Hence, one s and three p atomic orbitals of nitrogen mix to form sp³ hybrid orbitals.