Which of the following halides is most acidic | vedclass

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Question

(A) The acidity of halides of group $15$ elements depends on the tendency of the central atom to accept a lone pair of electrons (Lewis acidity). As w

Vedclass · Accepted Answer

$PCl_3$

Vedclass · Answer

(A) The acidity of halides of group $15$ elements depends on the tendency of the central atom to accept a lone pair of electrons (Lewis acidity). As we move down the group,the size of the central atom increases and its electronegativity decreases. $PCl_3$ has the smallest central atom with the highest electronegativity among the given group $15$ halides,making it the most effective at accepting electron pairs. Therefore,$PCl_3$ is the most acidic.

Which of the following halides is most acidic?

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