Identify the correct order of thermal stabili | vedclass

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Question

(C) The thermal stability of hydrides of group $16$ elements decreases down the group as the size of the central atom increases. As the size of the ce

Vedclass · Accepted Answer

$H_2Te < H_2Se < H_2S < H_2O$

Vedclass · Answer

(C) The thermal stability of hydrides of group $16$ elements decreases down the group as the size of the central atom increases. As the size of the central atom increases,the bond length between the central atom and hydrogen increases,which leads to a decrease in bond dissociation enthalpy. The order of thermal stability is $H_2O > H_2S > H_2Se > H_2Te$. Therefore,the correct order is $H_2Te < H_2Se < H_2S < H_2O$.

Identify the correct order of thermal stability of hydrides of $16$ group elements from the following.

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