The more polar bond in each of the following pairs is F-Cl. F-Cl bond is more polar than Br-Cl bond.
What are polar bonds?
Polar bonds are covalent bonds between two atoms in which share of electrons unequally.
Fluorine is more electronegative than bromine. The polarity of the bond depends upon difference in electronegativity.
Thus, F-Cl bond is more polar than Br-Cl bond.
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