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Class 10 > Learn Science > How will you separate a mixture containing kerosene...
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How will you separate a mixture containing kerosene and petrol (difference in their boiling points is more than 25ºC), which are miscible with each other?

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kerosene and petrol are miscible liquids also the difference between their boiling point is more than 25 ºC so they can be separated by the method of distillation. Follow the steps given below (i) Take a mixture in the distillation flask fit it with the thermometer. (ii) Arrange the apparatus as...
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kerosene and petrol are miscible liquids also the difference between their boiling point is more than 25 ºC so they can be separated by the method of distillation. Follow the steps given below (i) Take a mixture in the distillation flask fit it with the thermometer. (ii) Arrange the apparatus as shown in the given figure. (iii) Heat the mixture slowly keeping a close watch on thermometer. (iv) Since the petrol has lower boiling point starts vaporises and condenses in the condenser which is finally collected in the beaker.

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As you know petrol and kerosene are obtained from crude oil. Crude oil is simply a mixture of all these oils and other byproducts of petroleum. A fractionating column is used to separate these oils. The oils are boiled and are extracted at different boiling points. Just like the distillation of water...
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As you know petrol and kerosene are obtained from crude oil. Crude oil is simply a mixture of all these oils and other byproducts of petroleum. A fractionating column is used to separate these oils. The oils are boiled and are extracted at different boiling points. Just like the distillation of water where water is boiled and cooled off to get distilled water. Crude oil is boiled at a very high temperature and collected at different fractions with different boiling points. read less
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through fractional distillation
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through fractional distillation
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These can be separated by the method of distillation.
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distillation
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Boiling point of petrol is 95 degree C and that of kerosene is between 150 to 300 degree C. Hence we can easily separate them using a simple distillation flask. Petrol will evaporate first and get condensed by the circulating water and get deposited in the collecting flask.
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kerosene and petrol are miscible liquids also the difference between their boiling point is more than 25 ºC so they can be separated by the method of distillation. Follow the steps given below (i) Take a mixture in the distillation flask fit it with the thermometer. (ii) Arrange the apparatus as shown...
read more
kerosene and petrol are miscible liquids also the difference between their boiling point is more than 25 ºC so they can be separated by the method of distillation. Follow the steps given below (i) Take a mixture in the distillation flask fit it with the thermometer. (ii) Arrange the apparatus as shown in the given figure. (iii) Heat the mixture slowly keeping a close watch on thermometer. (iv) Since the petrol has lower boiling point starts vaporises and condenses in the condenser which is finally collected in the beaker. read less
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