question_answer

Number of a and n bond in 1-butenc-3-yne:

A)  \[5\sigma \] and \[5\pi \]

B)                         \[7\sigma \] and \[3\pi \]

C)                         \[8\sigma \]and \[2\pi \]

D)                         \[6\sigma \]and \[4\pi \]

Correct Answer: B

Solution :

\[7\sigma \] bond and \[3\pi \] bond in 1-butene 3 yne.