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Polar covalent bond.
A carbon-oxygen bond is more polar than a carbon-hydrogen bond, because the difference in electronegativity between carbon and oxygen is greater than the difference in electronegativity between carbon and hydrogen.
This is the difference of electronegativity between oxygen and hydrogen.
Hydrogen bonding exists between hydrogen and oxygen in water, becuase of the huge electronegativity difference between oxygen and hydrogen. This arises, due to the huge electron affinity of oxygen. Such interaction is not possible between carbon and hydrogen, as athe carbon is not as electronegative as oxygen.
nonpolar!
Polar covalent bond.
A carbon-oxygen bond is more polar than a carbon-hydrogen bond, because the difference in electronegativity between carbon and oxygen is greater than the difference in electronegativity between carbon and hydrogen.
This is the difference of electronegativity between oxygen and hydrogen.
Hydrogen bonding exists between hydrogen and oxygen in water, becuase of the huge electronegativity difference between oxygen and hydrogen. This arises, due to the huge electron affinity of oxygen. Such interaction is not possible between carbon and hydrogen, as athe carbon is not as electronegative as oxygen.
Polar
nonpolar!
polar covalent,
The bond between hydrogen and fluorine is not a covalent bond. When hydrogen bonds with oxygen, nitrogen, or fluorine, then it is called a hydrogen bond. Hydrogen bonds will be stronger than a regular covalent bond, so the electronegativity difference will be higher.
A "hydrogen bond" - a intermolecular force caused by large difference in electronegativity. [Hydrogen has a very low electronegativity whilst Fluorine, Oxygen and Nitrogen all have a very high electronegativity so an electrostatic attraction exists]
Oxygen atoms have a greater electronegativity than hydrogen atoms. Electronegativity is the ability of an atom in a molecule to attract electrons to itself.
The attraction of a particular kind of atom for the electrons of a covalent bond is called its electronegativity. If oxygen and hydrogen had equal electronegativity there wouldn't be any attraction between each molecule of water thus no hydrogen bonds.
Oxygen's high electronegativity draws the weaker electronegativity of hydrogen, so that oxygen's valance shell, needing two electrons to fill it attracts the electrons of two hydrogens.