we can't prepare absolute ethanol by fractional distillation . explain
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Absolute ethanol
It is not possible to obtain absolute alcohol by simple fractional distillation, because a mixture containing around 95.6% alcohol and 4.4% water becomes a constant boiling mixture (an azeotropic mixture). ... Absolute alcohol is obtained in third fraction that distills over at 78.2 °C (351.3 K).
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