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JAMB Chemistry 1988 Question 35

Question 35

Nitrogen and its Compounds

The thermal decomposition of copper (II) trioxonitrate (V) yields copper (II) oxide, oxygen and

  1. A.nitrogen (II) oxide
  2. B.nitrogen (I) oxide
  3. C.nitrogen (IV) oxide
  4. D.nitrogen
Show the answer and explanation

Answer: C (nitrogen (IV) oxide)

Explanation

2Cu(NO3)2 → 2CuO + 4NO2 + O2. The brown gas given off is nitrogen (IV) oxide.