MPSC Rajyaseva 2019 GS Paper 1 — Question 20
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खालीलपैकी कोणती अभिक्रियांकारके अमोनिया तयार करण्यासाठी वापरतात ? Which of the following reactants can be used to prepare ammonia?
(a)NH₄Cl + Ca(OH)₂
(b)N₂ + H₂
(c)CaCN₂ + H₂O
1)अ आणि ब / a and b
2)ब आणि क / b and c
3)अ आणि क / a and c
4)अ, ब आणि क / a, b and c✓ Correct
Ammonia can be prepared by heating ammonium chloride with calcium hydroxide, through Haber's process using nitrogen and hydrogen, and by the action of water on calcium cyanamide. All three methods are standard chemical preparations of ammonia.
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