Of the molecules alcl3 and albr3, which has bonds that are more polar?

The correct answer is that AlCl₃ is more polar in comparison to AlBr₃.

Explanation:

The electronegativity difference of the aluminum and chlorine atoms in AlCl₃ is 1.55, while the electronegativity difference of the aluminum and bromine atoms in AlBr₃ is 1.35. Both the molecules possess a substantial amount of difference in the electronegativity of atoms, which signifies that both these molecules exhibit polar nature. However, the electronegativity difference in AlCl₃ molecule is more than the electronegativity difference in AlBr₃. Thus, AlCl₃ is more polar in comparison to AlBr₃.

particle   p is an electron and particle q is a neutron