Which of the following substances is the most | vedclass

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(A) Volatility is inversely proportional to the molecular mass of the compound. As we move down the group from $C$ to $Sn$,the molecular mass increase

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$CH_4$

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(A) Volatility is inversely proportional to the molecular mass of the compound. As we move down the group from $C$ to $Sn$,the molecular mass increases,which leads to stronger van der Waals forces of attraction. Since $CH_4$ has the lowest molecular mass among the given hydrides,it has the weakest intermolecular forces and is therefore the most volatile.

Which of the following substances is the most volatile among $CH_4, SiH_4, GeH_4, SnH_4$?

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