1.

The basic character of hydrides of the VB group elements decreases in the order:

Answer»

`SbH_3 GT PH_3 gt AsH_3 gt NH_3`
`NH_3 gt SbH_3 gt PH_3 gt AsH_3`
`NH_3 gt PH_3 gt AsH_3 gt SbH_3`
`SbH_3 gt AsH_3 gt PH_3 gt NH_3`

ANSWER :C


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