Question

Which of the following moleculaes has two sigma $\left(\sigma \right)$ and two pi $\left(\pi \right)$ bonds?

• A. $C_2{H}_4$
• B. $N_2{F}_2$
• C. $C_2{H}_{2}C{l}_2$
• D. $HCN$

Answer 1

The correct option is D $HCN$

The structure of $HCN$ is $H-C\equiv N$. It has $2\pi$ and $2\sigma$ bonds.