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JAMB Chemistry 1989 Question 21

Question 21

Acids, Bases and Salts

An acid and its conjugate base

  1. A.can neutralise each other to form a salt
  2. B.differ only by a proton
  3. C.differ only by the opposite charges they carry
  4. D.are always neutral substances
Show the answer and explanation

Answer: B (differ only by a proton)

Explanation

In the Brønsted–Lowry theory a conjugate base is what is left when an acid loses one proton (H+), e.g. HCl and Cl−.