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A metal X on heating in nitrogen gas giv...

A metal `X` on heating in nitrogen gas gives `Y,Y` on treatment with `H_(2)O` gives a colourless gas which when passed through `CuSO_(4)` solution gives a blue colour. `Y` is:

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)(3Mg)x+ N_(2) overset(Delta) to underset(Y) (Mg_(3) N_(2)),`
`underset(Y) (Mg_(3)N_(2)) +6H_(2) O to 3Mh (OH)_(2) underset("Colourless")(+2NH_(3)uarr)`
`CuSO_(4) +4NH_(3) to underset("Blue complex")([Cu(NH_(3))_(4)]SO_(4))`
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