How can the shape of a molecule will never be a polar molecule?

Answer 1

A molecule will never be polar if it has a symmetrical shape that allows the dipole moments of its bonds to cancel each other out. For instance, molecules like carbon dioxide (CO₂) and methane (CH₄) have symmetrical geometries—linear and tetrahedral, respectively—that result in a uniform distribution of charge. Additionally, if a molecule consists solely of nonpolar bonds, such as diatomic molecules like N₂ or O₂, it will also be nonpolar regardless of its shape. Thus, symmetry and the nature of the bonds play crucial roles in determining the polarity of a molecule.