Identify the increasing order of acidity for | vedclass

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Question

(A) $1$. The acidity of hydrides of group $16$ elements increases down the group.$2$. As we move down the group from $S$ to $Te$, the atomic size incr

Vedclass · Accepted Answer

$H_2S < H_2Se < H_2Te$

Vedclass · Answer

(A) $1$. The acidity of hydrides of group $16$ elements increases down the group.$2$. As we move down the group from $S$ to $Te$, the atomic size increases.$3$. The increase in atomic size leads to a decrease in the bond dissociation enthalpy of the $H-E$ bond (where $E = S, Se, Te$).$4$. $A$ weaker $H-E$ bond makes it easier for the molecule to release $H^+$ ions in an aqueous solution.$5$. Therefore, the acidity increases in the order: $H_2S < H_2Se < H_2Te$.

Identify the increasing order of acidity for the following diprotic acids in aqueous solutions: $H_2S$, $H_2Se$, and $H_2Te$.

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