Answer
CH$_3$CH$_2$CH$_3$ < CH$_2$Cl$_2$ < CH$_3$CH$_2$OH
Work Step by Step
CH$_3$CH$_2$CH$_3$ is non polar, so it has the weakest IMFs. Ethanol can form hydrogen bonds, so it has stronger IMFs than does CH$_2$Cl$_2$.
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