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| Hydride | \[Sb{{H}_{3}}\] | > | \[N{{H}_{3}}\] | > | \[As{{H}_{3}}\] | > | \[P{{H}_{3}}\] |
| B.pt. | 256.0 | 239.6 | 218.0 | 185.0 |
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