Question

Benzoic acid contains

• A. 15 $\sigma$ and 2 $\pi$-bonds
• B. 15 $\sigma$ and 4 $\pi$-bonds
• C. 14 $\sigma$ and 4 $\pi$-bonds
• D. 13 $\sigma$ and 4 $\pi$-bonds

Answer 1

Answer: (B)

Single bond contains only one $\sigma$-bond, double bond contains one $\sigma$ and one $\pi$-bond and triple bond contains one $\sigma$ and two $\pi$ bonds. Thus, benzoic acid contains 15$\sigma$ and 4$\pi$-bonds.