Molecule non-polar or polar

Question

How can you find out if a molecule is non-polar or polar?

Answer 1

A polar molecule is the molecule which has a net dipole moment because of its having asymmetrical polar bonds.

Two factors go in finding out if a molecule is a polar. To find out if a molecule (or ion) is polar or non-polar, we should find out both factors.

i) Polarity of individual bonds in molecule;
i) Shape or geometry of molecule