Question

Why does C6H5I has higher dipole moment than C6H5F?

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Answer 1

Answer:

The dipole moment of fluorobenzene is lower than that of iodobenzene,even though fluorine is more electronegative than iodine.

Explanation:

fluorine less size so high electronegative and Iodine small size so low electronegative

Answer 2

Explanation:

Iodine has greater size than fluorine. The charge separation 'd' of C6H5I is larger than the charge separation of C6H5F. Dipole moment =  u x 'd' ,since 'd' of C6H5I is more than that of C6H5F dipole moment of C6H5I is greater than C6H5F.

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