Do you expect hydrocarbons, which contain only hydrogen and carbon to be polar?

Question

Water is usually used as a solvent for most experiments in chemistry. However, organic compounds which are non-polar are insoluble/immiscible with polar solvents like H20. Some organic compounds like alcohols and organic acids are soluble/miscible in water due to polar bonds caused by the presence of oxygen.

Do you expect hydrocarbons, which contain only hydrogen and carbon to be polar?

Answer 1

The will be non-polar because the electron density will more or less be symmetrical through out the molecule.

Answer 2

I would not expect polar hydrocarbons. For polarity to arise one would require a difference in electronegativity between the atoms in the molecule. In hydrocarbons there does not exist a significant amount of differential in electronegativity between carbon and hydrogen and hence to my knowledge would not expect polar hydrocarbons