Acidity of diprotic acids in aqueous solution | vedclass

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Question

(A) The acidic strength of hydrides increases as the size of the central atom increases,which weakens the $M-H$ bond. Since the atomic size increases

Vedclass · Accepted Answer

$H_2S < H_2Se < H_2Te$

Vedclass · Answer

(A) The acidic strength of hydrides increases as the size of the central atom increases,which weakens the $M-H$ bond. Since the atomic size increases from $S$ to $Se$ to $Te$,the bond dissociation enthalpy decreases,leading to an increase in acidic strength. The order is $H_2S Acidic nature $\propto \frac{1}{	ext{Bond dissociation enthalpy}}$.

Acidity of diprotic acids in aqueous solutions increases in the order:

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