Which among the following compounds have highest boiling point?

Which among the following compounds have highest boiling point?
  1. $\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}_2 \mathrm{Cl}$
  2. $\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{Cl}$
  3. $\mathrm{CH}_3 \mathrm{CH}(\mathrm{Cl}) \mathrm{CH}_2 \mathrm{CH}_3$
  4. $\mathrm{CH}_3 \mathrm{Cl}$

Solution

Boiling point $\propto$ molecular weight $\mathrm{CH}_3 \mathrm{CH}(\mathrm{Cl}) \mathrm{CH}_2 \mathrm{CH}_3$ have highest M.W.

Asked in: MHT CET 2022 (07 Aug Shift 1)

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