Question

The hybridization of carbon atoms in $C-C$ signal bond of $HC\equiv C-CH={CH}_2$ is:

• A. ${sp}^3,{sp}^3$
• B. ${sp}^2,{sp}^3$
• C. $sp,{sp}^2$
• D. ${sp}^3,sp$

Answer 1

Answer: (C)

$sp,{sp}^2$

$HC\equiv C-CH={CH}_2$

In the above compound (from left)

First carbon atom is in sp hybridization

Second carbon atom is as well in sp hybridization

Third carbon atom is in $s{p}^2$ hybridization

and the Fourth carbon atom is also $s{p}^2$ hybridization.

Therefore $C$ is the correct option.