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Which of the following has the highest p...

Which of the following has the highest proton affinity ?

A

Stibine (`SbH_(3)`)

B

Arsine `(AsH_(3))`

C

Phosphine `(PH_(3))`

D

Ammonia `(NH_(3))`

Text Solution

Verified by Experts

The correct Answer is:
D
`I to HIO_(3) , S to H_(2)SO_(4), P to H_(3)PO_(4)` and `C to CO_(2)`.
`MH_(3)+H^(+)to MH_(4)^(+)`
As the size of the central atoms increases, the stability of the conjugate acid decreases & hence the basic character decreases in the order.
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DINESH PUBLICATION-THE NITROGEN FAMILY-Revision question
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  9. Which of the following contains P-O-P bond?

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