Which molecule has the strongest intermolecular force? A.F^2 B.CIF C.CF D.HF

1 Answer
anor277
Apr 14, 2017

The answer is clearly #D#........

Explanation:

#F_2# is a covalent molecule, and a gas at room temperature. #ClF# is an interhalogen molecule, and also (I think) a gas. I don't know what #CF# is; possibly #"californium"#, or they might have meant difluorocarbene, #:CF_2#.

Hydrogen fluoride, #HF#, has extensive INTERMOLECULAR hydrogen bonding, because the individual molecules comprise a molecular dipole, i.e. #""^(delta+)H-F^(delta-)#, and this intermolecular force is responsible for the elevated normal boiling point of #HF# at #19.5# #""^@C#.

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