Q. The number of sigma and pi bonds in 1- butane 3-yne are:
A) $5\sigma\$and$\ 5\pi$
B) $6\sigma\$and$\ 4\pi$
C) $7\sigma\$and$\ 3\pi$
D) $8\sigma\$and$\ 2\pi$
Explanation
(c)
[image:4_image158.emf]
Thus, the number of $\sigma$ and $\pi$ bonds respectively are 7 and 3
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.