Question

In which of the following compounds, carbon atoms are in $S{p}^2$ hybridized state ?

• A. $C_3{H}_8$
• B. $C_2{H}_2$
• C. $C_2{H}_4$
• D. $C{H}_4$

Answer 1

The correct option is C $C_2{H}_4$

Alkanes have $s{p}^3$ hybridised carbon, as all s and p orbitals take part in bond formation.
Alkenes have $s{p}^2$ hybridised carbon having double bond, as one s and only two p orbitals take part in bond formation. While one p-orbital is empty.
Alkynes have $sp$ hybridised carbon having triple bond, as one s and only one p orbital take part in bond formation. While two p-orbital is empty. Hence, option C is correct.