Among the substance which have the strongest intermolecular forces is CH₃NH₂, and pure molecular solids which exhibits dipole-dipole intermolecular forces are PH₃ & HCl.
What is intermolecular forces?
Intermolecular forces are those forces which are exist between two molecules and intramolecular forces are those which are present within any molecule.
- In the first part only those will show highest intermolecular forces which are polar in nature as to get attracted by any other polar molecule. So, CH₃NH₂ will show highest itermolecular forces as in this molecule hydrogen bonding is present between hydrogen atom and nitrogen atom.
- Only those pure molecular solids will exhibit dipole-dipole intermolecular forces, whose structures are not symmetrical so that this will generate opposite pole or dipoles within the molecule. So, PH₃ and HCl will show dipole-dipole intermolecular forces.
Hence, correct options are CH₃NH₂ and PH₃ & HCl respectively.
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https://brainly.com/question/13588164
