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JAMB Chemistry 1985 Question 32

Question 32

Nitrogen and its Compounds

The neutralization reaction between NaOH solution and nitrogen (IV) oxide (NO2) produces water and

  1. A.NaNO2 and NaNO3
  2. B.NaNO3 and HNO3
  3. C.NaNO2
  4. D.NaNO3
  5. E.NaN2O4
Show the answer and explanation

Answer: A (NaNO2 and NaNO3)

Explanation

NO2 reacts with alkali as a mixture of two acids: 2NO2 + 2NaOH → NaNO2 + NaNO3 + H2O. Both sodium dioxonitrate (III) and sodium trioxonitrate (V) are formed.