Question

The percentage s-character of the hybrid orbitals in methane, ethene and ethyne are respectively :

• A. $25,33,50$
• B. $25,50,75$
• C. $50,75,100$
• D. $10,20,40$

Answer 1

The correct option is A $25,33,50$

Hybridization of $C{H}_4$ is $s{p}^3$. In this, the percentage of s-character is 25%.

In $C_2{H}_4$, the hybridization is $s{p}^2$. The percentage of s-character is 33%.

In $C_2{H}_2$, the hybridization is $sp$, so the percentage s-character is 50%.

Hence, the correct option is $A$