Welcome to Chem Zipper.com......: How is basicity order determined?

Search This Blog

Monday, October 5, 2020

How is basicity order determined?

According to "Lewis acid base concept base are those substance which can donate lone pair or can accept H+ ions" Basicity order of base determined on the basis of lp donation power of base. 
For example amine are  the  base due to the presence of lone pair on nitrogen atom.
Order of basicity of amines are as follow:
                                      3°>2°>1° (gaseous state only)
3° amines are more basic due to high density of electron on nitrogen atom hence it can easily donate lp to the acid or H+

For more details click the link given below:

Related Questions:

  1. What is relative basic strength order 1° amines , 2°amines and 3° amines ? 
  2. Explain:Arrange the following in the increasing order of their acid strength : Methyl amine, Dimethyl amine, Aniline, N-methyl aniline (I.I.T, 1988).
  3. What is Carbylamine test or Isocyanide test ?
  4. What is Hinsberg's reagent and where Hinsberg's test use?
  5. Can we prepare aniline by Gabriel – phthalimide reaction?
  6. N-Ethyl-N-methyl propanamine does not show optical activity why?
  7. What is relative basic strength order 1° amines , 2°amines and 3° amines ? Explain:
  8. Amines are more basic than ammonia why?
  9. Give an explanation for the fact that Guanidine NH=C(CH3)2 is a stronger base than most of amines?
  10. Arrange in correct order of basic Character of aniline, pyrrol, pyridine and piperidine?
  11. What is correct basicity order of pyridine, pyridazine, pyrimidine and pyrazine ?
  12. Give an explanation for the fact that Guanidine NH=C(CH3)2 is a stronger base than most of amines?
  13. Arrange in correct order of basic Character of aniline, pyrrol, pyridine and piperidine?
  14. What is correct basicity order of pyridine, pyridazine, pyrimidine and pyrazine ?
  15. Why pyridine is more basic than Pyrrole?
  16. Why pyrimidine is less basic than pyridine?
  17. Imidazole is more basic than pyridine? Why?
  18. Biological Important of Imidazole and structure:
  19. Pyridine is almost 1 million times less basic than piperidine? Why?
  20. Cyclohexylamine amine is the stronger base than Aniline? Why?
  21. Tetrahydroquinoline amine is the stronger base than Tetrahydroisoquinoline? Why?
  22. N,N,2,6-Tetramethyl aniline is more basic than N,N-Dimethyl aniline.Why ?


No comments:

Post a Comment