Which solid will have the weakest intermolecu | vedclass

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(B) The strength of intermolecular forces is directly related to the melting point of the solid. Among the given options,$Ice$ $(H_2O)$ is a molecular

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Phosphorus

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(B) The strength of intermolecular forces is directly related to the melting point of the solid. Among the given options,$Ice$ $(H_2O)$ is a molecular solid held by hydrogen bonds,but it has a relatively low melting point compared to the others. However,comparing the types: $Sodium \ fluoride$ $(NaF)$ is an ionic solid (strong electrostatic forces),$Phosphorus$ $(P_4)$ and $Naphthalene$ $(C_{10}H_8)$ are molecular solids held by weak van der Waals forces. Among molecular solids,$Ice$ has hydrogen bonding,which is stronger than the London dispersion forces present in $Phosphorus$ and $Naphthalene$. $Phosphorus$ $(P_4)$ consists of discrete molecules held by very weak van der Waals forces,making it the solid with the weakest intermolecular forces among the choices.

Which solid will have the weakest intermolecular forces?

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