Fifth group elements form hydrides to type `AH_(3)`. The hydrides have a lone pair of:
Channel: Doubtnut
Date: 26/01/2020

Fifth group elements form hydrides to type `AH_(3)`. The hydrides have a lone pair of electrons. The hydries are reducing in nature and the reducing power is related to the stability of A-H bonds. The hydrides are covalent and low boiling. Their boiling points depends on their ability to from hydrogen bond and their molecular size which decide the intermolcular forces in the hydrides . The H-M-H bond angle of `V` group hydrides decrease from `107^(circ)` to `90^(circ)` for `NH_(3)` to `SbH_(3)` , this is due to: