Question

The number of sigma ($\sigma$)and pi ($\pi$) bonds in pent-2-en-4-yne is :

• A. 11 $\sigma$ bonds and 2 $\pi$ bonds
• B. 13 $\sigma$ bonds and no $\pi$bonds
• C. 10 $\sigma$ bonds and 3 $\pi$bonds
• D. 8 $\sigma$ bonds and 5 $\pi$bonds

Answer 1

Answer: (C)

10 $\sigma$ bonds and 3 $\pi$bonds

Answer 2

Number of $\sigma$ bonds = 10
and number of $\pi$ bonds = 3