Final answer:
Solutions are homogeneous mixtures that have a uniform composition throughout. They are formed when solute molecules are distributed evenly within the solvent, creating a single-phase mixture with the same properties throughout.
Step-by-step explanation:
The question posed seems to have a slight misunderstanding about solutions. In chemistry, solutions are homogeneous mixtures, meaning that they have a uniform composition throughout. The solute and solvent molecules are evenly dispersed on a molecular scale. If you take the example of dissolving sugar in water, once the sugar has dissolved and the solution has been adequately stirred, the ratio of sugar to water will be the same throughout the solution. Therefore, any portion taken from the solution will have the same properties and composition as any other portion. The physical state of the solution is commonly the same as the solvent, and in the case of sugar in water, that is a liquid state.
Contrary to one of the options in the question, the formation of a solution is a physical process, and not a chemical one, where the substances combine to form a homogeneous mixture without forming separate layers.