The number of sigma `(sigma)` and pi`(pi)` bonds in pent-2-en-4-yne is:

Options

A. 10 `sigma` bonds are `3pi` bonds
B. 8 `sigma` bonds and `5pi` bonds
C. 11 `sigma` bonds and `2pi` bonds
D. `13 sigma` bonds and no `pi` bonds

Answer

A

Explanation

`H overset(sigma)-underset(H) underset(|sigma) overset(H) overset(|sigma)(C)- underset(H) underset(|sigma)(C) underset(sigma)= overset(H) overset(|sigma) (C) underset(sigma)- C overset(sigma) underset(pi)= C overset(sigma)-H`
Number of `sigma` bonds =10
and number of `pi` bonds =3