Science
Crystallisation
क्रिस्टलीकरण
In this Class 9 Science topic from “Exploring Mixtures and Their Separation,” students learn how crystallisation separates and purifies a dissolved solid from a solution. The process involves preparing a concentrated or saturated solution, filtering out insoluble impurities, and allowing the solution to cool or evaporate so that pure crystals form. Students examine why different substances crystallise at different temperatures, compare crystallisation with evaporation, and understand its use in obtaining substances such as copper sulphate and common salt.
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Practice questions are not available for this topic yet. We plan to add questions with clear explanations soon. You can keep practising other topics in the meantime.
- Class / subject
- 9 · Science
- Chapter
- Exploring Mixtures and Their Separation
- Topic
- Crystallisation
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