Any substance that has the ability to dissolve more substances than any other liquid is called a universal solvent.
.Water is called the universal solvent because it is a remarkable solvent and it is able to dissolve most substances to form solutions.
The chemical composition and physical attributes of water make it an excellent solvent.
The chemical formula of water is .It is a neutral atom, in which one part has a partial positive charge and another part has a partial negative charge.
That's the reason water is known as a universal solvent.