The number of sigma (σ) and pi (π) bonds in pent-2-en-4-yne is

Question

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

(1) 10$\sigma$ bonds and 3$\pi$ bonds

(2) 8$\sigma$ bonds and 5$\pi$ bonds

(3) 11$\sigma$ bonds and 2$\pi$ bonds

(4) 13$\sigma$ bonds and no $\pi$ bonds

Comments

Some basic principles of organic chemistry

Answer 1

Ans: (1) 10 sigma bonds and 3π bonds.

Explanation: (CH3CHCHCCH).