Question

Explain polar vs non polar in a simple way?

Answer 1

Polar bond = simply a type of covalent bond in which the electrons are
shared but not equally. This happens when two different atoms come
together, such a C and O. Each atom has a different ability to draw
electrons to itself when it shares electrons (that drawing ability is
called Electronegativity).
Nonpolar bond = two of the same atoms come together, such as the
diatomic molecule N2, or triatomics such as O3, etc. A nonpolar
covalent bond could be viewed as having "pure" covalent character. There is
perfectly equal sharing.