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JAMB Chemistry 1999 Question 49

Question 49

Alkanoic Acids and Esters

When the two end alkyl groups of ethyl ethanoate are interchanged, the compound formed is known as

  1. A.methyl ethanoate
  2. B.ethyl propanoate
  3. C.methyl propanoate
  4. D.propyl ethanoate.
Show the answer and explanation

Answer: C (methyl propanoate)

Explanation

Ethyl ethanoate is CH3COOC2H5. Swapping the end groups gives C2H5COOCH3, methyl propanoate.