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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
Only `NH_(3)` gas gives deep blue solution with `CuSO_(4).NH_(3)` is obtained by the reaction of nitride of metal with water.
`3Mg+N_(2)rarrMg_(3)N_(2)overset(6H_(2)O)rarrunderset("Coloourless")2NH_(3)uparrow+3Mg(OH)_(2)CuSO_(4)+4NH_(3)rarrunderset("Deep blue colour")[Cu(NH_(3))_(4)]SO_(4)`
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