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JAMB Chemistry 1987 Question 36

Question 36

Metals and their Compounds

Which of the following elements will form oxide which will dissolve both in dilute HNO3 and NaOH solutions to form salts?

  1. A.Al
  2. B.Mg
  3. C.Ag
  4. D.Mn
Show the answer and explanation

Answer: A (Al)

Explanation

Aluminium oxide is amphoteric: it reacts with acids and with alkalis to form salts.