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JAMB Chemistry 1992 Question 46

Question 46

Alkanoic Acids and Esters

The functional group present in an organic compound which gives bubbles on treatment with a saturated solution of NaHCO3 is

  1. A.hydroxyl group
  2. B.carboalkoxyl group
  3. C.carbonyl group
  4. D.carboxyl group.
Show the answer and explanation

Answer: D (carboxyl group.)

Explanation

Carboxylic acids (–COOH) are acidic enough to react with NaHCO3, releasing bubbles of CO2.