Question

From the information given below answer the following questions.
Gas Oxygen Argon Nitrogen
B.P°C – 183°C – 186°C – 196°C
Volume% in air 20.9 0.9 78.1
i) Which gas can be obtained first in fractionation of air ?
ii) Mention the B.P order of above table gases.
iii) Which technique will you use to separate petrol from crude petroleum.
iv) Is it possible separation of alcohol and water with separating funnel. If not give reaso

Answer 1

Fractional distillation of air. About 78 per cent of the air is nitrogen and 21 per cent is oxygen. These two gases can be separated by fractional distillation of liquid air.