In 2-butene, which one of the following statements is true

Options

A. `C_(1) - C_(2)` bond is a `sp^(3) - sp^(3) sigma-` bond
B. `C_(2) - C_(3) ` bond is a `sp^(3) - sp^(2) sigma`- bond
C. `C_(1) - C_(2)` bond is a `sp^(3) - sp^(2) sigma`- bond
D. `C_(1) - C_(2)` bond is a `sp^(2) - sp^(2) sigma`- bond

Answer

C

Explanation

`overset(1) ( C) underset(sp^(3)) (H_(3)) - overset(2) (C ) underset(sp^(2)) (H) = overset(3) ( C)underset(sp^(2))(H) - overset(4) ( C) underset(sp^(3)) ( H_(3))`
`C_(1) - C_(2) implies sp^(3) - sp^(2) sigma` - bond
`C_(2) - C_(3) implies sp^(2) - sp^(2) sigma-`bond