Question

The number of $\sigma$ and $\pi$ bonds in $C_2{H}_2$ is:

• A. 0 and 4
• B. 2 and 2
• C. 3 and 2
• D. 4 and 2

Answer 1

Answer: (C)

3 and 2

Acetylene form cylindrical $\pi$- electron cloud where nodal plane at one $\pi$- bond occupied by antinode of other $\pi$-bond.

It has 3 $\sigma$-bond and 2 $\pi$ bond.