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(D) The strength of oxoacids of the same group increases with the increase in the oxidation state of the central atom and decreases as we move down th

Vedclass · Accepted Answer

$H_3PO_4$

Vedclass · Answer

(D) The strength of oxoacids of the same group increases with the increase in the oxidation state of the central atom and decreases as we move down the group due to the increase in atomic size.Comparing $H_3PO_4$ and $H_3AsO_4$,$P$ is smaller than $As$,making $H_3PO_4$ a stronger acid.Comparing $H_3PO_4$ and $H_3PO_3$,$H_3PO_4$ has a higher oxidation state $(+5)$ compared to $H_3PO_3$ $(+3)$,making $H_3PO_4$ stronger.Thus,$H_3PO_4$ is the strongest acid among the given options.

The strongest acid among the given options is:

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