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JAMB Chemistry 1993 Question 37

Question 37

Nitrogen and its Compounds

Copper metal will react with concentrated trioxonitrate (V) acid to give

  1. A.Cu(NO3)2 + NO + N2O4 + H2O
  2. B.Cu(NO3)2 + NO + H2O
  3. C.CuO + NO2 + H2O
  4. D.Cu(NO3)2 + NO2 + H2O
Show the answer and explanation

Answer: D (Cu(NO3)2 + NO2 + H2O)

Explanation

Cu + 4HNO3(conc) → Cu(NO3)2 + 2NO2 + 2H2O. Dilute nitric acid would give NO instead.