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Bond dissociation enthalpy of E- H (E = ...

Bond dissociation enthalpy of E- H (E = element) bonds is given below .
Compound `NH_(3) " " PH_(3) " " AsH_(3) " " SbH_(3)`
`Delta_("diss") (E-H)//`
`kJ mol^(-1) 389 " " 322" "297" "255`
Which of the following compounds will act as strongest reducing agent ?

A

`NH_(3)`

B

`PH_(3)`

C

`AsH_(3)`

D

`SbH_(3)`

Text Solution

Verified by Experts

The correct Answer is:
D
`SbH_(3)` molecule is expected to be strongest reducing agent because Sb-H has the minimum bond dissociation enthalpy.
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