Question

The bond between which two atoms has the greatest degree of polarity in the following molecule?

Answer 1

Between the oxygen and the hydrogen......

Explanation:

And how do we assess this? Probably the best metric is by `"electronegativity values"`, for which various scales are available, and which is conceived to be the ability of an atom in a chemical bond to polarize electron density towards itself.

Pauling electronegativity of oxygen is `3.44`, of hydrogen, `2.20`, and of carbon, `2.55`. Given these values, the `C-O` bond is LESS polar, less charge separated, than the `O-H` bond. This makes sense in that we know that the water molecule, which features `O-H` bonds, is a highly polar molecule. Alcohols, which feature `O-H` bonds, generally have some solubility in water.