Which of the following is the correct decreas | vedclass

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(C) The boiling points of haloalkanes are primarily determined by the magnitude of van der Waals forces,which increase with an increase in molecular s

Vedclass · Accepted Answer

$CHBr_3 > CH_2Br_2 > CH_3Br > CH_3Cl$

Vedclass · Answer

(C) The boiling points of haloalkanes are primarily determined by the magnitude of van der Waals forces,which increase with an increase in molecular size and mass.For the given compounds,the molecular mass increases with the number of bromine atoms present.$CHBr_3$ $(M \approx 253 \ g/mol)$ has the highest molecular mass,followed by $CH_2Br_2$ $(M \approx 174 \ g/mol)$,then $CH_3Br$ $(M \approx 95 \ g/mol)$,and finally $CH_3Cl$ $(M \approx 50.5 \ g/mol)$.Therefore,the correct decreasing order of boiling point is $CHBr_3 > CH_2Br_2 > CH_3Br > CH_3Cl$.

Which of the following is the correct decreasing order of the boiling point of the given compounds?

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