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A metal ‘M’ reacts with nitrogen gas to ...

A metal ‘M’ reacts with nitrogen gas to afford `'M_(3)N' . 'M_(3)N'` on heating at high temperature gives back ‘M’ and on reaction with water produces a gas ‘B’. Gas ‘B’ reacts with aqueous solution of `CuSO_(4)` to form a deep blue compound. ‘M’ and ‘B’ respectively are :

A

`Li` and `NH_(3)`

B

`Ba`and `N_(2)`

C

`Na and NH_(3)`

D

`Al` and `N_(2)`

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VMC MODULES ENGLISH-13-14 HYDROGEN & S-BLOCK ELEMENT-JEE Main Archive
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