Solid water, commonly known as ice, is classified as e) molecular solid. This is because its structure consists of water molecules that are held together by hydrogen bonds.
In a molecular solid like ice, the molecules do not form a regular repeating pattern, which distinguishes them from ionic or metallic solids. Instead, they are arranged in a way that maintains their distinct molecular identity while still exhibiting solid properties. The hydrogen bonding in ice leads to a unique crystalline structure that gives it its characteristic low density and allows it to float on liquid water.