Question

With a neat labelled diagram explain the process used for separating acetone and water from their mixture. List two criteria that must be fulfilled for using this process.

CBSE Class IX Science LA (5 Marks)

Answer 1

Answer:

Activity :

• Take the mixture in a distillation flask. Fit it with a thermometer.

• Arrange the apparatus as shown in figure.

• Heat the mixture slowly keeping a close watch at the thermometer.

• The acetone vapourizes, condenses in the condenser and can be collected from the condenser outlet

• Water is left behind in the distillation flask.

Criterion : Two miscible liquids that boil without decomposition and have sufficient difference in their boiling points can be separated by this method.

Explanation:

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Answer 2

Answer:

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Explanation:

• Take the mixture in a distillation flask. Fit it with a thermometer.  

• Arrange the apparatus as shown in figure.

• Heat the mixture slowly keeping a close watch at the thermometer.  

• The acetone vapourizes, condenses in the condenser and can be collected from the condenser outlet

• Water is left behind in the distillation flask.

Criterion : Two miscible liquids that boil without decomposition and have sufficient difference in their boiling points can be separated by this method.