Q. The number of sigma ($\sigma$) and pi ($\pi$) bonds in pent-2-en-4-yne is :
A) 10 $\sigma$ bonds and 3 $\pi$ bonds
B) 8 $\sigma$ bonds and 5 $\pi$ bonds
C) 11 $\sigma$ bonds and 2 $\pi$ bonds
D) 13 $\sigma$ bonds and no $\pi$ bond
Explanation
[Solution] $CH_3-CH=CH-C\equiv CH$ has 6 C-H and 4 C-C $\sigma$ bonds (10 $\sigma$) and 1 + 2 = 3 $\pi$ bonds. Answer (1).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.