Which of the following orders regarding the boiling points of the given alkyl chloride is correct?

Which of the following orders regarding the boiling points of the given alkyl chloride is correct?
  1. $\mathrm{CH}_{3}\left(\mathrm{CH}_{2}ight)_{3} \mathrm{Cl}>\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CHClCH}_{3}>\left(\mathrm{CH}_{3}ight)_{3} \mathrm{CCl}$
  2. $\mathrm{CH}_{3}\left(\mathrm{CH}_{2}ight)_{3} \mathrm{Cl} <\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CHClCH}_{3} <\left(\mathrm{CH}_{3}ight)_{3} \mathrm{CCl}$
  3. $\mathrm{CH}_{3}\left(\mathrm{CH}_{2}ight)_{3} \mathrm{Cl}>\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CHClCH}_{3} <\left(\mathrm{CH}_{3}ight)_{3} \mathrm{CCl}$
  4. $\mathrm{CH}_{3}\left(\mathrm{CH}_{3}ight)_{3} \mathrm{Cl} <\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CHClCH}_{3} <\left(\mathrm{CH}_{3}ight)_{3} \mathrm{CCl}$

Solution

Boiling point decreases with increasing branching of the alkyl group.

Asked in: JEE-TOPICTESTS-CHEMISTRY

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