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JAMB Chemistry 1999 Question 37

Question 37

Nitrogen and its Compounds

In the diagram above, Y is a mixture of

Diagram for this question
  1. A.calcium hydroxide and ammonium chloride
  2. B.calcium hydroxide and sodium chloride
  3. C.sodium chloride and ammonium trioxonitrate (V)
  4. D.sodium dioxonitrate (III) and ammonium chloride
Show the answer and explanation

Answer: A (calcium hydroxide and ammonium chloride)

Explanation

The diagram shows the laboratory preparation of ammonia, dried over calcium oxide. Ammonia is made by heating an ammonium salt with a base: calcium hydroxide and ammonium chloride.