A) \[N{{H}_{3}}>P{{H}_{3}}>As{{H}_{3}}>Sb{{H}_{3}}\]
B) \[Sb{{H}_{3}}>As{{H}_{3}}>P{{H}_{3}}>N{{H}_{3}}\]
C) \[P{{H}_{3}}>N{{H}_{3}}>As{{H}_{3}}>Sb{{H}_{3}}\]
D) \[Sb{{H}_{3}}>N{{H}_{3}}>As{{H}_{3}}>P{{H}_{3}}\]
Correct Answer: D
Solution :
The decreasing order of boiling point of\[V\]group hydride, is as\[\begin{align} & Hydride\,\,Sb{{H}_{3}}>N{{H}_{3}}>As{{H}_{3}}>P{{H}_{3}} \\ & B.pt\,\,\,\,\,\,\,\,\,\,\,\,256.0\,\,\,\,\,239.6\,\,\,\,\,218.0\,\,\,\,\,\,185.0 \\ \end{align}\]
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