Q. 6

The fragrance of

Answer :

To extract the essential oils from plants steam distillation is popularly used. It is based on the principle that essential oils are insoluble in water but miscible with water vapour.

Initially they take the parts of the plant from which the oils have to be extracted, in a still. Into this steam at high temperature is passed. The essential oils from plant parts volatilises into steam, which passes through condenser pipe. The cooled vapour separates into oil and water. The floating oil is then separated.

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