Calcium burns in nitrogen to produce a white powder which dissolves insufficient water to produce a gas A and an alkaline solution. The solution on exposure to air produces a thin solid layer of b on the surface. Indentify the compounds A and B.

Calcium burns in nitrogen to produce a white powder which dissolves in

1.	Calcium burns in nitrogen to produce a white powder which dissolves insufficient water to produce a gas A and an alkaline solution. The solution on exposure to air produces a thin solid layer of b on the surface. Indentify the compounds A and B.
Answer» Solution :Gas is ammonia and SOLID `B` is CALCIUM `3Ca+N_(2)rarrCa_(3)N_(2)` `Ca_(2)N_(2)+6H_(2)Orarr3Ca(OH)_(2)+2NH_(3)(A)` `Ca(OH)_(2)+CO_(2)rarrCaCO_(3)(B)+H_(2)O`