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Of the following the most acidic is....

Of the following the most acidic is.

A

`H_3 PO_4`

B

`H_3 AsO_4`

C

`H_3 SbO_4`

D

`H_3 BiO_4`

Text Solution

Verified by Experts

The correct Answer is:
A
When oxidation state of central atom is same, with the decrease in electronegativity of central atom, acidic character decreases. Hence `H_3 PO_4` is most acidic.
`H_3 PO_4 gt H_3 AsO_4 gt H_3 SbO_4 gt H_3 BiO_4`.
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