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Boiling point of alcohal is 78°c …

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Boiling point of alcohal is 78°c and that of water is 100°c.Explain separation technique will you use to saparate them from a mixture which liquid will be seprated first and which will be left behind. Draw a diagram to show the appartus and the setup used in the process

Posted by Loving Naved 6 years, 1 month ago

CBSE > Class 09 > Science

2 answers

Ritik Tevathiya 6 years, 1 month ago

By fractional distillation alcohol separate first water left behind

Gaurav Seth 6 years, 1 month ago

Ethyl alcohol and water are completely miscible liquids and these have sufficient difference (22°C) in their boiling points.
So these can be separated by the process of simple distillation.
Experiment. Arrange the apparatus as shown in Fig. Take the mixture of ethyl alcohol and water in a distillation flask.
Heat slowly till the liquid starts boiling and the temperature of the liquids starts rising. At 78°C, vapours of alcohol will be
formed and get collected as liquid in the receiver after passing through the condenser. Temperature will remain constant
till all the alcohol in the mixture is evaporated. When the temperature starts rising, stop heating. Pure water is left in the
distillation flask and alcohol collects in the receiver.

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