Give an example of a solution in which both the solute and solvent are solids.
Solute: Solute is a substance that is present in a solution in a minor proportion. It is dissolved in a medium. For example, salt is dissolved in water, salt is the solute that is dissolved in a medium which is water.
Solvent: Solvent is a medium in which solute is dissolved. It is present in a major proportion of the solution. For example, salt is dissolved in water, salt is the solute that is dissolved in a medium which is water (solvent).
Final answer: Brass is an alloy (solution). Here, both solute and solvent are solids. Zinc is the solute and copper is the solvent.