25 Short Question-Answers: Solutions and Their Classification 1. What is a solution? A solution is a homogeneous mixture of two or more substances. 2. What is a solute? The substance that is dissolved in a solution is called the solute. 3. What is a solvent? The substance that dissolves the solute is called the solvent. 4. Give an example of a solid in liquid solution. Salt in water. 5. Give an example of a gas in liquid solution. Carbon dioxide in soda water. 6. What is a liquid in liquid solution? Alcohol in water is an example. 7. Name a gas in gas solution. Air (oxygen in nitrogen). 8. What is a solid in solid solution? Alloys like brass (zinc in copper). 9. How are solutions classified based on physical state? Into solid, liquid, and gaseous solutions. 10. What are dilute solutions? Solutions with a small amount of solute. 11. What are concentrated solutions? Solutions with a large amount of solute. 12. What is a saturated solution? A solution in which no ...