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Calcium burns in nitrogen to produce a w...

Calcium burns in nitrogen to produce a white powder which dissolves in sufficient water to produce a gas (A) and alkaline solution. The solution on exposure to air produce a thin solid layer of (B) on the surface. Identity the compound (A) and (B)

Text Solution

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`NH_(3),CaCO_(3)`
`3Ca+N_(2)toCa_(3)N_(2)overset(6H_(2)O)tounderset(Alkali)(Ca(OH)_(2))+underset(A)(2NH_(3))`
`Ca(OH)_(2)overset(CO_(2))tounderset(Solid)(CaCO_(3))+H_(2)O`
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