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WAEC Chemistry 2013 Objective — Question 28

Question 28 of 50 from the West African Examinations Council (WAEC) Chemistry 2013 Objective paper, with the correct answer and a full explanation.

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The aqueous solution which has pH > 7 is

  • A. FeCl3(aq)
  • B. CuSO4(aq)
  • C. KNO3(aq)
  • D. Na2CO3(aq)Correct

Explanation

Na2CO3 produces an alkaline solution upon hydrolysis since it is from a strong base and a weak acid.

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