Among the hydrides of group 16 elements,the h | vedclass

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(D) On moving down the group from $O$ to $Te$,the molecular mass increases,which leads to an increase in the magnitude of van der Waals forces of attr

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$H_2S, H_2O$

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(D) On moving down the group from $O$ to $Te$,the molecular mass increases,which leads to an increase in the magnitude of van der Waals forces of attraction,causing the boiling point to increase.However,$H_2O$ exhibits an anomalously high boiling point due to the presence of strong intermolecular hydrogen bonding.The boiling point order for group $16$ hydrides is: $H_2S Therefore,$H_2S$ has the lowest boiling point $(X)$ and $H_2O$ has the highest boiling point $(Y)$.

Among the hydrides of group $16$ elements,the hydride $X$ has the lowest boiling point and the hydride $Y$ has the highest boiling point. $X$ and $Y$ respectively are:

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