Question #60c6c

2 Answers
Nov 16, 2015

Water has only one type of bond which is polar covalent bond


In water molecule the bond is formed by the sharing of electrons between H atoms and O atom. But the O atom is more electronegative than H atom that's why the shared pair of electrons are more towards O atom and far from H atoms. As a result, O atom carries partial negative charge and H atom carries partial positive charge. Due to this reason the bond is called Polar Covalent Bond.

Between water molecules, we can have mainly hydrogen bonds and London dispersion force


Intra Molecular Hydrogen Bonding occurs between the water molecules. Further, also London dispersion force exists, one of the Van der Waals force forces, the others are: 1) Keesom force; 2) Debye force.

Van der Waals force forces are the residual attractive or repulsive forces between molecules or atomic groups that do not arise from a covalent bond , or electrostatic interaction of ions or of ionic groups with one another or with neutral molecules.

London dispersion forces are generally weaker than ionic bonds and hydrogen bonds.

You can see the hydrogen bonds in a quite simple home experiment: 1) take a glass of water; 2) fill it out; 3) slowly add coins, one by one. You should see a "belly" forming before the water pours out.

hydrogen bonds seen from a homemade experiment

Image for hydrogen bonds in water