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प्रश्न
You are given a mixture of water, groundnut oil and common salt. How will you separate groundnut oil and common salt from it ?
उत्तर
By using evaporation and separating funnel process, we can separate the ground nut oil and common salt from the given mixture. First pour the mixture in a separating funnel and leave it for some time. As both salt solution and oil are immiscible, water settles down and oil will keep floating because of the difference in their densities. Now, open the stop–cock and take out the salt solution in the beaker. Ground nut oil is left in the funnel. After this, put the beaker on the funnel. Water will evaporate and salt will be left behind as residue.
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