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JAMB Chemistry 1978 Question 20

Question 20

Introduction to Organic Chemistry

The IUPAC names for the compounds CH3COOH and CH2 = CH2 are respectively:

  1. A.acetic acid and ethane
  2. B.ethanoic acid and ethene
  3. C.methanoic acid and ethylene
  4. D.ethanol and ethene
  5. E.acetic acid and ethylene.
Show the answer and explanation

Answer: B (ethanoic acid and ethene)

Explanation

CH3COOH is ethanoic acid and CH2=CH2 is ethene. Acetic acid and ethylene are the older common names.