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JAMB Chemistry 1993 Question 32

Question 32

Metals and their Compounds

Which of these salts will produce its metal, oxygen and nitrogen (IV) oxide on heating?

  1. A.Silver trioxonitrate (V)
  2. B.Sodium trioxonitrate (V)
  3. C.Calcium trioxonitrate (V)
  4. D.Lithium trioxonitrate (V)
Show the answer and explanation

Answer: A (Silver trioxonitrate (V))

Explanation

Nitrates of metals low in the activity series, like silver, decompose all the way to the metal: 2AgNO3 → 2Ag + 2NO2 + O2.