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How basic nature of amines is related with the pKb value?

How basic nature of amines is related with the pKb value? 
 

Grade:12

3 Answers

Arun
25750 Points
4 years ago
A large Kb value indicates the high level of dissociation of a strong base. A lower pKbvalue indicates a stronger base. pKa and pKb are related by the simple relation: pKa + pKb = 14
Vikas TU
14149 Points
4 years ago
Aliphatic amines are stronger bases than ammonia due to +I effect of alkyl groups leading to high electron density on the nitrogen atom. Their pKb values lie in the range of 3 to 4.22. On the other hand, aromatic amines are weaker bases than ammonia due to the electron withdrawing nature of the aryl group.
Sai Sanjana Gedda
30 Points
4 years ago
 
pkb is inversly proportional to basic nature of amines.  if pkb value increses the basic nature decreases and vice versa.......                                                                                                                                                                           stability of amines is secondary >third degree>primary.....
 

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