Which type of aqueous solution is distilled water?

• A. Pure solvent
• B. Saturated solution
• C. Supersaturated solution
• D. Unsaturated solution

Answer: (A)

Verified step by step guidance

1. Understand the definitions of the terms related to solutions: A 'pure solvent' is a liquid that contains no solute; a 'saturated solution' contains the maximum amount of solute dissolved at a given temperature; a 'supersaturated solution' contains more solute than the saturation point, usually unstable; and an 'unsaturated solution' contains less solute than the maximum amount that can be dissolved.
2. Recognize that distilled water is water that has been purified by distillation, meaning it contains no dissolved substances or solutes.
3. Since distilled water contains no solute, it fits the definition of a pure solvent rather than any type of solution with solute dissolved in it.
4. Therefore, classify distilled water as a pure solvent because it is essentially just the solvent component without any solute present.
5. Conclude that the correct answer is 'Pure solvent' because distilled water is free of dissolved substances and does not meet the criteria for saturated, supersaturated, or unsaturated solutions.