JAMB Chemistry 1984 Question 33

Question 33

Alkanoic Acids and Esters

Which of the following represents a carboxylic acid?

Diagram for this question
  1. A.R—C(OH)=O
  2. B.R—C(OR)=O
  3. C.H2SO4
  4. D.R—COOCOR
  5. E.R—C(H)=O
Show the answer and explanation

Answer: A (R—C(OH)=O)

Explanation

A carboxylic acid contains the –COOH group: a carbon with a C=O and an –OH. B is an ester and E is an aldehyde.