Question

Select all that apply. the polarity of the hcl molecule is due to the: greater attraction of the chlorine nucleus for the shared electrons shape of the molecule large differences in electronegativity great difference in size between the two atoms

Answer 1

The polarity of HCl is due to the greater attraction of the chlorine nucleus for the shared electrons, shape of the molecule and the large differences in electronegativity. A chlorine atom is much more electronegative as a result it doe not share the electron bonding with the hydrogen atoms equally which makes the molecule a polar molecule.  A molecule is considered polar if there is a net dipole resulting from the opposing charges where you have a partial negative charge end and a partial positive charge end in the molecule. Other examples of this type of molecule are water, hydrofluoric acid and nitric acid.

Answer 2

Explanation:

Polarity in a molecule arises due to unequal sharing of electrons. Hydrogen atom has one electron whereas chlorine atom has 17 electrons.

Thus, in order to complete their octet both H and Cl will share an electron with each other.

It is also known that chlorine is much more electronegative than hydrogen. Therefore, it will readily attract one electron from hydrogen atom.

Hence, we can conclude that the polarity of the HCl molecule is due to the following.

• greater attraction of the chlorine nucleus for the shared electrons.
• large differences in electronegativity.