QJEEM17Ch9ff6: JEE Main 2017 Chemistry - Class 12 JEEM17Ch9ff6 Solution: The increasing order of the boiling points for the following…

B.P. $$\propto$$ dipole moment

(I) C₂H₅OH : Hydrogen bonding - Hydrogen bonding > Dipole-Dipole

(II) C₂H₅Cl : Dipole-Dipole of C₂H₅Cl is more polar than C₂H₅OCH₃
so, Dipole-Dipole C₂H₅Cl > Dipole-Dipole C₂H₅OCH₃

(III) C₂H₅CH₃ : No hydrogen bonding and dipole-dipole interaction

(IV) C₂H₅OCH₃ : Dipole-Dipole

$$\therefore$$ The increasing order of boiling points will be :

C₂H₅CH₃ < C₂H₅OCH₃ < C₂H₅Cl < C₂H₅OH