A) I, II, III and IV
B) I, III and IV
C) I, II and IV
D) I and IV
Correct Answer: A
Solution :
(I) The reducing property of the hydrides of V A group increases from \[N{{H}_{3}}\] to \[Bi{{H}_{3}}\] as \[M-H\] bond length increases. (Where, \[MN,P\text{ }As,\text{ }Sb,\text{ }Bi\]) \[N{{H}_{3}}<P{{H}_{3}}<As{{H}_{3}}<Sb{{H}_{3}}<Bi{{H}_{3}}\] (II) The tendency to donate lone pair or basic strength decreases from \[N{{H}_{3}}\] to \[Bi{{H}_{3}}\]. \[N{{H}_{3}}>P{{H}_{3}}>As{{H}_{3}}>Sb{{H}_{3}}>Bi{{H}_{3}}\] (III) Thermal stability of VA group hydrides decreases from \[N{{H}_{3}}\]to\[Bi{{H}_{3}}\] . \[N{{H}_{3}}>P{{H}_{3}}>As{{H}_{3}}>Sb{{H}_{3}}>Bi{{H}_{3}}\] (IV) Bond angle of VA group hydride; decreases from \[N{{H}_{3}}\] to \[Bi{{H}_{3}}\]. \[N{{H}_{3}}>P{{H}_{3}}>As{{H}_{3}}>Sb{{H}_{3}}>Bi{{H}_{3}}\]You need to login to perform this action.
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