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Question
A pure liquid is obtained from a solution by :
A pure liquid is obtained from a solution by :
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Solution
The correct option is A distillation
Correct answer (b) distillation
- Distillation can be used to get a pure liquid from a solution containing several soluble solids in the liquid.
- When distilling, the solution is heated so that the component with the lowest boiling point evaporates first, leaving the other solutes behind.
Explanation for incorrect options :
- In evaporation only the solid component is obtained, the liquid component of the mixture escapes in the form of vapours.
- Filtration separates only the insoluble impurities present in a mixture not the soluble impurities.
- In crystallisation also only the solid component is obtained, the liquid component of the mixture escapes in the form of vapour.
Correct answer (b) distillation
- Distillation can be used to get a pure liquid from a solution containing several soluble solids in the liquid.
- When distilling, the solution is heated so that the component with the lowest boiling point evaporates first, leaving the other solutes behind.
Explanation for incorrect options :
- In evaporation only the solid component is obtained, the liquid component of the mixture escapes in the form of vapours.
- Filtration separates only the insoluble impurities present in a mixture not the soluble impurities.
- In crystallisation also only the solid component is obtained, the liquid component of the mixture escapes in the form of vapour.
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