Which out of 1-butyne and I-butene has large dipole moment and why?

Explanation

The structures of 1-butyne and 1-butene are as follwos:
`underset("1-butyne")(H_(3)C-CH_(2)-C-=CH)" "underset("1-butene")(H_(3)C-CH_(2)-CH=CH_(2))`
As the sp hybridised terminal C-atom inn 1-butyne is more electronegative than the `sp^(2)` hybridised C-atom in 1-butene, the latter has larger dipole moment thant he former.