Question

When the temperature at the top of the fractionating column reaches 78°C (which is the boiling point of alcohol), then alcohol vapour passes into the condenser, gets cooled and collects in a beaker kept at the other end of the condenser . The alcohol-water mixture is kept boiling at such a rate that the thermometer shows the boiling point of alcohol (78°C). In this way, all the alcohol distils over and gets separated. It is collected as the first fraction.

1. The technique mentioned above is -

(a) Paper chromatography
(b) Centrifugation
(c) Fractional distillation
(d) Simple distillation​

Answer 1

Answer:

Fractional distillation

Explanation:

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