JAMB Chemistry 2005 Question 14

Question 14

Alkanals and Alkanones

Which of the following are structural isomers?

  1. A.Propanoic acid and propan-1, 2-diol
  2. B.Propanal and propanone
  3. C.Ethanoic acid and propanoic acid
  4. D.Ethan-1, 2-diol and ethanoic acid
Show the answer and explanation

Answer: B (Propanal and propanone)

Explanation

Propanal (CH3CH2CHO) and propanone (CH3COCH3) both have the formula C3H6O but different structures.