Identify the compound from following having lowest boiling point.

Identify the compound from following having lowest boiling point.
  1. $\mathrm{n}-\mathrm{C}_4 \mathrm{H}_9 \mathrm{NH}_2$
  2. $\mathrm{C}_2 \mathrm{H}_5 \mathrm{CH}\left(\mathrm{CH}_3\right)_2$
  3. $\mathrm{C}_2 \mathrm{H}_5 \mathrm{~N}\left(\mathrm{CH}_3\right)_2$
  4. $\left(\mathrm{C}_2 \mathrm{H}_5\right)_2 \mathrm{NH}$

Solution

(i) Boiling point $\propto$ Molar mass (ii) Also, dependent on H-bond (i) Boiling point $\propto$ Molar mass (ii) In isomers Boiling point $\propto \frac{1}{\text { Branching }}$

Asked in: MHT CET 2021 (22 Sep Shift 1)

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