A) \[MgC{{O}_{3}}\]
B) \[MgO\]
C) \[Mg3{{H}_{2}}\]
D) \[MgO+M{{g}_{3}}{{N}_{2}}\]
Correct Answer: D
Solution :
Magnesium bums in air to produce \[MgO\] and \[M{{g}_{3}}{{N}_{2}}\] \[2Mg+{{O}_{2}}\xrightarrow{{}}\underset{~magnesium\text{ }oxide}{\mathop{2MgO}}\,\] \[3Mg+{{N}_{2}}\xrightarrow{{}}\underset{~magnesium\text{ nitride}}{\mathop{M{{g}_{3}}{{N}_{2}}}}\,\]
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