What are the strongest bonds in water?
The intramolecular polar covalent bonds in the water molecule are the strongest bonds in each water molecule.
In the water molecule,
These polar covalent bonds are intramolecular (meaning within the molecule) and are the strongest bonds in water.
The diagram below illustrates the polar covalent bonds between O and H.
The diagram below illustrates the polarity of the water molecule, and the unequal sharing of electrons by O.