A) \[N{{H}_{3}}\] with \[CuO\]
B) \[N{{H}_{4}}N{{O}_{3}}\]
C) \[{{(N{{H}_{4}})}_{2}}C{{r}_{2}}{{O}_{7}}\]
D) \[Ba{{({{N}_{3}})}_{2}}\]
Correct Answer: D
Solution :
\[Ba{{\left( {{N}_{3}} \right)}_{2}}\xrightarrow{Heat}B{{a}_{(s)}}+3{{N}_{2(g)}}\] Azide salt of barium can be obtained in purest form as well as the decomposition product contain solid B a as by product along with gaseous nitrogen hence no additional step of separation is required.
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