The terms dilute and concentrated referred to the concentration of a solution.
Answer: Option A
Explanation:
A solution, a homogeneous mixtures of solute in a solvents. The concentrations of solute may vary in the solvent. And depending upon the concentration of solutes in a solution, the solution gets classified further as dilute solution and concentrated solution.
A dilute solution is the one in which the concentration of solute will be very less compared to the concentration of solvent in the solution. Similarly, a concentrated solution will contain high concentration of solute more than the solvent. Thus, the terms concentrated and dilute referred concentration of solution.