A) \[Al\]&\[N{{H}_{3}}\]
B) Li &\[N{{H}_{3}}\]
C) Na &\[N{{H}_{3}}\]
D) Mg &\[N{{H}_{3}}\]
Correct Answer: B
Solution :
Since the gas B turns \[CuS{{O}_{4}}\]solution blue, it can be \[N{{H}_{3}}.\] Since formula of the given compound A is \[{{\text{M}}_{\text{3}}}\text{N,}\] A is either lithium or sodium nitride. Of the two, \[\text{L}{{\text{i}}_{\text{3}}}\text{N}\] is most likely since it is a stable, very high melting compound.You need to login to perform this action.
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