calcium burn in nitrogen to produce a white powder which dissolve in sufficient water to produce a gas (A) and an alkaline solution (B). (B) on exposure to air produce a thin solid layer of (C) on the surface. Identify (A), (B) and (C)
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2
I guess
A is ammonia NH3
B is Ca (OH)2
But I can't identify C , sorry for that.
A is ammonia NH3
B is Ca (OH)2
But I can't identify C , sorry for that.
mukulgoyal:
C IS CaCO3
ok , thanks for letting know. .
Answered by
5
Calcium burns in air to form Calcium oxide and Calcium Nitride.
Calcium Nitride on Hydrolysis with water forms Ammonia gas and Calcium Hydroxide.
The equation is as follows :
C₃N₂ + 6H₂O ---------> 3Ca(OH)₂ + 2NH₃
The alkaline solution formed Calcium Hydroxide reacts with Carbon(iv) oxide in air to form Calcium Carbonate.
Therefore :
A = Ammonia gas
B = Calcium Hydroxide.
C = Calcium Carbonate
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