A metal (A) on heating in nitrogen gas gives compound B. B on treatment with H O gives a colourless gas which when passed through CuSO solution gives a dark blue-violet coloured solution. A and B resp

Question

A metal (A) on heating in nitrogen gas gives compound B. B on treatment with H O gives a colourless gas which when passed through CuSO solution gives a dark blue-violet coloured solution. A and B respectively, are : 2 4 3 3 2 3 2 3 2 3 2 3 2 2 2 3 4 3 3 4 4

(A) Na and Na N
(B) Mg and Mg N
(C) Mg, Mg(NO )
(D) Na, NaNO

Prashant Kotian · Accepted Answer

Correct answer: C) MG, MG(NO ). 3Mg + N → Mg N Mg N + 6H O → 3Mg(OH) + 2NH CuSO + 4NH → [Cu(NH ) ]SO (dark blue)

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