MCQ
The number of sigma and pi-bonds in $1-$ butene $3-$ yne are
- A$5$ sigma and $5$ pi
- ✓$7$ sigma and $3$ pi
- C$8$ sigma and $2$ pi
- D$6$ sigma and $4$ pi
✓
Answer
Correct option: B.
$7$ sigma and $3$ pi
b
The number of sigma and $pi$-bonds in $1$-butene $3$- yne are $7$ sigma and $3$ pi. It has one $C = C$ double bond which contains one pi bond. It has one $C \equiv C$ triple bond which contains two pi bonds. It has $3$ carbon carbon sigma bonds and $4 C - H$ pi bonds.
The number of sigma and $pi$-bonds in $1$-butene $3$- yne are $7$ sigma and $3$ pi. It has one $C = C$ double bond which contains one pi bond. It has one $C \equiv C$ triple bond which contains two pi bonds. It has $3$ carbon carbon sigma bonds and $4 C - H$ pi bonds.
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