Question

Define polar covalent bond.

Answer 1

Polar covalent bondingis a type of chemical bond where a pair of electrons is unequally shared between two atoms.

In a polar covalent bond, the electrons are not equally shared because one atom spends more time with the electrons than the other atom.

In polar covalent bonds, one atom has a stronger pull than the other atom and attracts electrons.

Example of a polar covalent bond is between a hydrogen and a chlorine atom. In this bond, the chlorine atom spends more time with the electrons than the hydrogen atom. Because of this unequal sharing of electrons, the chlorine atom carries a partial negative charge, and the hydrogen atom carries a partial positive charge.