A) \[Mg{{(N{{O}_{3}})}_{2}}\]
B) \[M{{g}_{3}}{{N}_{2}}\]
C) \[N{{H}_{3}}\]
D) \[MgO\]
Correct Answer: B
Solution :
Only \[N{{H}_{3}}\] gas gives deep blue solution with \[CuS{{O}_{4}}\cdot N{{H}_{3}}\]is obtained from reaction of nitride of the metal with water. \[\underset{X}{\mathop{3Mg}}\,+{{N}_{2}}\xrightarrow{{}}\underset{Y}{\mathop{M{{g}_{3}}{{N}_{2}}}}\,\xrightarrow{6{{H}_{2}}O}\]\[\underset{colourless}{\mathop{2N{{H}_{3}}\uparrow }}\,+3Mg{{(OH)}_{2}}\]
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