Which among the following has larger dipole moment?justify
But-1-ene or But-1-yne

Dear Student,

But-1-yne will be more electronegative than But-1-ene. This is because the C in but-1-yne is sp hybridised which is more electronegative than the C in but-1-ene which is sp​2 hybridised. Greater electronegativity means greater electronegative difference and thus higher dipole moment. 
So, the answer will be but-1-yne.

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