Which among the following is a correct order of $\mathrm{p}^{\mathrm{kb}}$ values of amines?

Which among the following is a correct order of $\mathrm{p}^{\mathrm{kb}}$ values of amines?
  1. $\mathrm{R}-\mathrm{NH}_2>\mathrm{NH}_3>\mathrm{R}_2 \mathrm{NH} < \mathrm{R}_3 \mathrm{~N}$
  2. $\mathrm{R}_3 \mathrm{~N}>\mathrm{R}_2-\mathrm{NH}>\mathrm{R}-\mathrm{NH}_2>\mathrm{NH}_3$
  3. $\mathrm{R}_2 \mathrm{NH}>\mathrm{R}_3 \mathrm{~N}>\mathrm{R}-\mathrm{NH}_2>\mathrm{NH}_3$
  4. $\mathrm{NH}_3>\mathrm{R}-\mathrm{NH}_2>\mathrm{R}_2 \mathrm{NH} < \mathrm{R}_3 \mathrm{~N}$

Solution

Theory based.

Asked in: MHT CET 2022 (08 Aug Shift 1)

Practice more Amines questions on Aicharya