Unilorin Post-UTME Chemistry 2024 (Model questions) Question 7

Question 7

Acids, Bases and Salts

Which of the following salts will hydrolyze in water to produce a basic solution?

  1. A.NaCl
  2. B.NH4Cl
  3. C.KNO3
  4. D.CH3COONa
Show the answer and explanation

Answer: D (CH3COONa)

Explanation

Sodium ethanoate comes from a weak acid and a strong base, so its ethanoate ions react with water to give OH− ions. NH4Cl gives an acidic solution; NaCl and KNO3 are neutral.