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A metal (A) on heating in nitrogen gas...

A metal (A) on heating in nitrogen gas given compound B.B on treatment with `H_(2)O` givens a colourless gas which when passed throught `CuSO_(4)` solution given a dark blue - violet coloured solution . A and B respectivley are :

A

`Mg(NO_(3))_(2)`

B

`Mg_(3)N_(2)`

C

`NH_(3)`

D

`MgO`

Text Solution

Verified by Experts

The correct Answer is:
B
`underset((X))(3Ng)+N_(2)rarrunderset((Y))(Mg_(3)N_(2))`
`underset((Y))(Mg_(3)N_(2))+6H_(2)OrarrMg(OH)_(2)+2NH_(3)`
`4NH_(3)+CuSO_(4)+H_(2)Orarrunderset("Blue coloured solution")([Cu(NH_(3))_(4)]SO_(4).H_(2)O)`
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