Q1
The substance that dissolves in a solution is called the:
Asolute
Bsolvent
Cmixture
Dcompound
CBSEClass 8 (CBSE)ScienceCh 9 · Topic 1
Solute, Solvent and Solution
Learning the basic terms describing a solution.
Core concept
Water is often called the 'universal solvent' because it can dissolve more substances than almost any other liquid, due to its unique molecular structure. Not all substances dissolve in every solvent — oil, for example, does not dissolve in water but does dissolve in solvents like petrol, showing that 'like dissolves like' based on the chemical nature of the substances involved. Solutions can be solid-in-liquid (sugar in water), liquid-in-liquid (alcohol in water), or gas-in-liquid (carbon dioxide in soda).
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• A solution forms when a solute dissolves uniformly in a solvent.
• In sugar water, sugar is the solute and water is the solvent.
• Water is called the 'universal solvent' due to its ability to dissolve many substances.
• Solutions can be solid-liquid, liquid-liquid, or gas-liquid combinations.