Which pair of molecules is not a polar bond?

n - o

c - o

o - h

o - o

O - O

Explanation: Polar molecules are those which contain polarity in the molecules. Polarity is developed due to the presence of elements of different electronegativities.

Molecules which contains elements with similar electronegativity will be non polar in nature.

Thus O-O with two similar elements will be non polar in nature.

is has three carbons, so the answer is propylamine.

meth-

eth-

prop-

but-

pent-

hex-

hept-

oct-

non-

explanation: