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  4. Acidity of diprotic acids in aqueous solutions increases in the order

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Q. Acidity of diprotic acids in aqueous solutions increases in the order

NTA AbhyasNTA Abhyas 2022

Solution:

As on moving down the group bond length increases so liberation tendency of $H^{+}$ will be more as cleavage of M-H get easier, so acidic nature decreases.
$H_{2}S < H_{2}\text{Se} < H_{2}\text{Te}$