A) \[\,N{{F}_{3}}>NC{{l}_{3}}>NB{{r}_{3}}>N{{I}_{3}}\] (order of lewis basic strength)
B) \[{{F}_{2}}<C{{l}_{2}}<B{{r}_{2}}<{{I}_{2}}\] (order of solubility in water)
C) \[N{{H}_{3}}>P{{H}_{3}}>As{{H}_{3}}>Sb{{H}_{3}}>Bi{{H}_{3}}\] (order of thermal stability)
D) \[{{F}^{-}}>C{{l}^{-}}>B{{r}^{-}}>{{I}^{-}}\] (order of reducing power)
Correct Answer: C
Solution :
As we move downwards thermal stability of hydrides\[\downarrow \].
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