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MPSC State Service 2019 · GS · Question 20 of 97

Which of the following reactants can be used to prepare ammonia? a. NH4Cl + Ca (OH)2 b. N2 + H2 c. CaCN2 + H2O

Chemistry

  1. Aa and b
  2. Bb and c
  3. Ca and c
  4. Da, b and cCorrect

Answer: D. a, b and c

Explanation

Ammonia is prepared from NH₄Cl + Ca(OH)₂ in the laboratory, from N₂ + H₂ by Haber's process, and by hydrolysis of calcium cyanamide.

Source: MPSC Rajyaseva Prelims 2019 – GS Paper I (Set A), official paper

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