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Ethanol could be prepared in the laboratory by

Chemistry
WAEC 2025

Ethanol could be prepared in the laboratory by

  • A. reduction of ethanoic acid
  • B. oxidation of primary alkanol
  • C. oxidation of alkenes
  • D. hydration of ethene
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Correct Answer: Option D
Explanation

Ethanol (C\(_2\)H\(_5\)OH) can be prepared in the laboratory by the hydration of ethene (C\(_2\)H\(_4\)). This process involves an acid-catalyzed addition reaction where water (in the form of steam) is added across the double bond of ethene in the presence of a concentrated acid catalyst, such as phosphoric(V) acid (H\(_3\)PO\(_4\)) or sulphuric acid (H\(_2\)SO\(_4\)).


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