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- A group 15 element, which is a metal and forms a hydride with strongest reducing power among group 15 hydrides. The element is : Option: 1 BiOption: 2 AsOption: 3 SbOption: 4 P
A group 15 element, which is a metal and forms a hydride with strongest reducing power among group 15 hydrides. The element is :
Option: 1 Bi
Option: 2 As
Option: 3 Sb
Option: 4 P
Answers (1)
N, P are Non-Metal
As, Sb are Metalloid
Bi is Metal
Hydrides of group 15 elements are
NH3 , PH3 , AsH3 , SbH3 , BiH3
In NH3, the hydrogen atom gets a partial positive charge due to less electronegativity. But in BiH3, the hydrogen atom gets a partial negative charge because hydrogen is more electronegative than bismuth.
BiH3 is a strong reducing agent than others because we know that H- is a strong reducing agent and Bi – H bond dissociation energy is very less.
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