Recall that dipole moment refers to the electronegativity difference in a bond/molecule.
This means the molecule with the largest dipole moment has the largest electronegativity difference.
Which choice(s) correctly rank(s) the bonds in terms of increasing polarity?
I. Cl-F < Br-Cl < Cl-Cl II. H-C < H-N < H-O
III. Br-F < I-F < Cl-F IV. Si-Cl < Si-P < Si-C < Si-F
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