Question

what is Polar molecular solids

Answer 1

Most molecular solids are insulators, relatively small, jave low densities.
Example:-sugar,solid halogens,sulphur and ice

Answer 2

Molecules consist of atoms that are made up of electrons, protons, and neutrons. The electrons are usually distributed equally throughout the molecule's outer shells, called the orbitals. However, when the electrons do not have an equal distribution in the orbital, you have a polar molecule. In a polar molecule, the ends of the molecule, called dipoles, carry an unequal charge.

This is an important concept because many areas of the body are either water soluble or fat soluble. A polar molecule is water soluble. A non-polar molecule is fat soluble. It's important to note here that in order for a solution to form, the molecules must be either both polar or both non-polar.

For example, water is a polar molecule and so is ethanol. When you mix water and ethanol, you see a homogeneous solution with both molecules in the solution, meaning that the molecules equally mix together. However, when you try to mix a polar and a non-polar molecule, what happens? They don't mix. For example, water (a polar molecule) does not mix with oil (a non-polar molecule). So, like molecules will mix with like molecules. Trying to remember that 'like mixes with like' will help you determine if a solution will form or not.

Have you ever tried to mix together the ingredients of a cake? Usually you have to include water and oil in the cake mix. If you mix them together in a measuring cup, the oil and water don't mix - the oil rises to the top and the water settles to the bottom of the measuring cup. This is a good example of how a polar and non-polar molecule will not form a solution. But mixing molecules of the same polarity (either both polar or both non-polar) will result in a solution.