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  4. What is the decreasing order of basicity of 1°, 2° and 3° ethyl amines and ammonia?

Q. What is the decreasing order of basicity of 1, 2 and 3 ethyl amines and ammonia?

 5061  212 AIPMTAIPMT 1994Amines Report Error

Solution:

As the number of alkyl groups increases, the electron density on nitrogen atom also increases, so the basic character increases but 3 amines are less basic than 2 amines due to steric hindrance of 3 amines, so the correct order of basicity is Ammonia < 1 < 3 < 2