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26/12/2020 3:52 pm
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How will you separate a mixture containing kerosene and petrol (difference in their boiling points is more than 25°C), which are miscible with each other?
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26/12/2020 3:55 pm
A mixture of kerosene and petrol which are miscible with each other can be separated by distillation.
Method
- Take a mixture in a distillation flask.
- Fit it with a thermometer.
- Arrange the apparatus as shown in the figure.
- Heat the mixture slowly.
- Petrol vaporises first as it has lower boiling point. It condenses in the condenser and is collected from the condenser outlet.
- Kerosene is left behind in the distillation flask.