Question

How many types of chemical bond are there?

Answer 1

Since chemical bonds are normally not uniquely of one type, the number of types is hard to count. Furthermore there could be different ways of typing chemical bonds.

There are covalent bonds. They come in single, double, triple bonds, but also in conjugated bonds that have a nature somewhere in between single and double bonds, but rarely exactly 1.5. And there are aromatic bonds, which are the ultimate in conjugation.

There are Vanderwaals bonds. Electrostatic interactions between molecules that give attraction. These can be dipole-dipole interactions or involve induced-dipoles.

There are ionic bonds. But most ionic compounds do not have a pure ionic bond, they may be partly delocalized covalent bonds too.

There are hydrogen bonds. But hydrogen bonds are just strong dipole-dipole interactions, so it can be considered a name for something we counted already.

There are metal bonds, between atoms that readily liberate some of their electrons, where these electrons move relatively freely through the solid.