JAMB Chemistry 1985 Question 39

Question 39

Alkanoic Acids and Esters

Which of the following is the functional group of carboxylic acids?

  1. A.—OH
  2. B.> C = O
  3. C.> C—OH
  4. D.—C(=O)OH
  5. E.—C = N
Show the answer and explanation

Answer: D (—C(=O)OH)

Explanation

Carboxylic acids contain the carboxyl group, –COOH: a carbon joined to both a C=O oxygen and an –OH.