JEE MAIN - Chemistry (2025 - 29th January Evening Shift - No. 17)
Total number of sigma (σ) _______ and pi(π) ______ bonds respectively present in hex-1-en-4-yne are:
14 and 3
11 and 3
13 and 3
3 and 13
Explanation
The compound given is hex - 1 - en - 4 - yne
Structure is
a double bond has one $\pi$ bond and one sigma bond.
A triple bond has one $\sigma$ bond and two $\pi$ bonds.
So, the number of $\pi$ bonds $=1+2=3$
For sigma bonds, count all carbon $-$ carbon bonds and carbon $-$ hydrogen bonds except the $\pi$ bonds in double bond and triple bond.
The number of sigma bonds = 13
So, total number of bonds $\Rightarrow \sigma=13\quad \pi=3$
Answer : option (C) 13 and 3
Comments (0)
