Question

Basic strength of different alkyl amines depends upon:

• A. $+I$ effect
• B. steric effect
• C. solvation effect
• D. all of these

Answer 1

Answer: (D)

all of these

The basic strength of different alkyl amines depends on many factors like:

1) $+I$ effect is the polarization of a sigma bond due to electron donating effect of adjacent groups or atoms.

2) In water, the ammonium salts of primary and secondary amines undergo solvation effects due to hydrogen bonding to a much greater degree than ammonium salts of tertiary amines.

3) steric effect is the effect faced by incoming group or hydrogen by the already present bulky $-R$ groups on the Nitrogen atom.