Question

In vinyl acetylene $CH\equiv C-CH=C{H}_2$ type of overlapping in $\left(C_2\sigma C_3\right)$ bond is :

• A. $s{p}^2-sp$
• B. $sp-s{p}^2$
• C. $s{p}^3-s{p}^3$
• D. $s{p}^3-s{p}^2$

Answer 1

The correct option is B $sp-s{p}^2$

C atom labelled:
2. has 2 bonds, 1 triple bond with $C_1$ atom and 1 sigma bond with $C_3$, $sp$ hybridization.
3. has 3 bonds, 1 double bond with $C_4$ atom, a single bond with $H$ and a sigma bond with $C_2$, ${sp}^2$ hybridization.
$sp-{sp}^2$