Verified Solution • 2025–26 Session moderate

QJEEM19Ch7f49: JEE Main 2019 Chemistry - Class 11 JEEM19Ch7f49 Solution: In the following compounds, the decreasing order of basic…

In the following compounds, the decreasing order of basic strength will be :

Multiple Choice Options

  • A (C2H5)2NH > NH3 > C2H5NH2
  • B NH3 > C2H5NH2 > (C2H5)2NH
  • C (C2H5)2NH > C2H5NH2 > NH3
  • D C2H5NH2 > NH3 > (C2H5)2NH

Step-by-Step Verified Solution

Because of +I effect of -C2H5 group, C2H5NH2 and (C2H5)2NH are more basic than NH3.

When with amine ethyl group (-C2H5) present then basic strength order :

2o amine > 3o amine > 1o amine

Note :

When with amine methyl group (-CH3) present then basic strength order :

2o amine > 1o amine > 3o amine

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