A metal (A) on heating in nitrogen gas gives compound B. B on treatment with H2O gives a colourless gas which when passed through CuSO4 solution gives a dark blue-violet coloured solution. A and B respectively, are:
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a
Na & Na3N
b
Na & NaNO3
c
Mg & Mg3N2
d
Mg & Mg(NO3)2
answer is C.
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Detailed Solution
3Mg+N2→Mg3N2 (A) (B) Mg3N2+6H2O→3MgOH2+2NH3 (B) CuSO4+4NH3→CuNH34SO4Dark blue
A metal (A) on heating in nitrogen gas gives compound B. B on treatment with H2O gives a colourless gas which when passed through CuSO4 solution gives a dark blue-violet coloured solution. A and B respectively, are: