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Absolute alcohol can not be prepared from rectified spirit by simple distillation because |
Answer» <html><body><p>The <a href="https://interviewquestions.tuteehub.com/tag/boiling-17187" style="font-weight:bold;" target="_blank" title="Click to know more about BOILING">BOILING</a> points of water and alcohol are very close<br/>Water and alcohol form a <a href="https://interviewquestions.tuteehub.com/tag/constant-930172" style="font-weight:bold;" target="_blank" title="Click to know more about CONSTANT">CONSTANT</a> boiling azeotropic mixture<br/>`C_(2)H_(<a href="https://interviewquestions.tuteehub.com/tag/5-319454" style="font-weight:bold;" target="_blank" title="Click to know more about 5">5</a>)OH` forms H-bonds with water<br/>Alcohols molecules are highly hydrated</p>Solution :The ratio of water and alcohol in both phases (ie., vapour & liquid) is the same of the same and hence can be separated by fractional distillation.</body></html> | |