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The basic character of hydrides of the V...

The basic character of hydrides of the `V`-group elements decreases in the order

A

`SbH_(3) gt PH_(3) gt AsH_(3) gt NH_(3)`

B

`NH_(3) gt SbH_(3)gtPH_(3)gtAsH_(3)`

C

`NH_(3)gtPH_(3)gtAsH_(3)gtSbH_(3)`

D

`SbH_(3)gtAsH_(3)gtPH_(3)gtNH_(3)`

Text Solution

Verified by Experts

The correct Answer is:
C
`NH_(3)>PH_(3)>AsH_(3)>SbH_(3)`
On moving down the group atomic size increases and availability of lone pair decreases. Hence, basic character decreases.
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