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The process of cooling a hot, concentrated solution of a substance to obtain crystal is called -
- a)Fractional distillation
- b)Distillation
- c)Crystallisation
- d)Chromatography
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
The process of cooling a hot, concentrated solution of a substance to ...
The process of cooling a hot, concentrated solution of a substance to obtain crystals is called crystallization. The process of crystallization is used for obtaining a pure solid substance from impure sample.
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The process of cooling a hot, concentrated solution of a substance to ...
Crystallisation: When a hot, concentrated solution of a substance is allowed to cool slowly, crystals of pure solid are formed, while impurities remain dissolved in the solvent. This process is called Crystallisation. The crystals can be separated by filtration. An impure sample of compound, like copper sulphate or alum, can be purified by crystallization.
Community Answer
The process of cooling a hot, concentrated solution of a substance to ...
Understanding Crystallisation
Crystallisation is a vital process in chemistry for obtaining pure solids from a solution. It involves cooling a hot, concentrated solution to allow the dissolved substance to form solid crystals.
Key Aspects of Crystallisation:
- Definition: Crystallisation is the technique used to separate a solid in the form of crystals from a solution.
- Process:
- The substance is first dissolved in a solvent to create a saturated solution.
- Upon heating, more solute dissolves. When the solution cools, the solubility decreases.
- As the temperature drops, the solute begins to crystallise out of the solution, forming pure crystals.
- Importance:
- This method is essential for purifying substances, especially in laboratories and industries.
- It helps in obtaining high-purity crystals for various applications, such as pharmaceuticals and food.
- Comparison with Other Methods:
- Fractional Distillation: Separates components based on different boiling points; not suitable for crystallising solids.
- Distillation: Used for separating liquid mixtures; again, not for crystallisation.
- Chromatography: Primarily for separating mixtures based on differential adsorption; not focused on producing crystals.
Conclusion:
In summary, the correct answer to the process of obtaining crystals from a hot, concentrated solution is option 'C', Crystallisation. This method is crucial for purifying and isolating solid substances in various scientific and industrial fields.
Crystallisation is a vital process in chemistry for obtaining pure solids from a solution. It involves cooling a hot, concentrated solution to allow the dissolved substance to form solid crystals.
Key Aspects of Crystallisation:
- Definition: Crystallisation is the technique used to separate a solid in the form of crystals from a solution.
- Process:
- The substance is first dissolved in a solvent to create a saturated solution.
- Upon heating, more solute dissolves. When the solution cools, the solubility decreases.
- As the temperature drops, the solute begins to crystallise out of the solution, forming pure crystals.
- Importance:
- This method is essential for purifying substances, especially in laboratories and industries.
- It helps in obtaining high-purity crystals for various applications, such as pharmaceuticals and food.
- Comparison with Other Methods:
- Fractional Distillation: Separates components based on different boiling points; not suitable for crystallising solids.
- Distillation: Used for separating liquid mixtures; again, not for crystallisation.
- Chromatography: Primarily for separating mixtures based on differential adsorption; not focused on producing crystals.
Conclusion:
In summary, the correct answer to the process of obtaining crystals from a hot, concentrated solution is option 'C', Crystallisation. This method is crucial for purifying and isolating solid substances in various scientific and industrial fields.
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The process of cooling a hot, concentrated solution of a substance to obtain crystal is called -a)Fractional distillationb)Distillationc)Crystallisationd)ChromatographyCorrect answer is option 'C'. Can you explain this answer?
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