Arrange the following in increasing order of their pkb value :
C6H5NH2, NH3, C2H5NH2,(C2H5)2NH.
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The order of the pkb will be C6H5NH2 > NH3 > C2H5NH > (C2H5)2NH.
Explanation:
- The basicity of the bases is inversely proportional to the pKb of the compound.
- This means that the higher the pKb, the weaker is the base and vice versa.
- The alkyl groups has inductive effect which means it will push electron to nitrogen and make it's lone pair more available and make it a stronger base.
- So the trend will be
- NH3 < C2H5NH < (C2H5)2NH
- Now the benzene ring takes the electron in its ring for resonance.
- So the final trend will be
- C6H5NH2 < NH3 < C2H5NH < (C2H5)2NH.
- So the pKb trend will be
- C6H5NH2 > NH3 > C2H5NH > (C2H5)2NH.
For more information about basicity,
https://brainly.in/question/11334411
what is basicity of amines?? - Brainly.in
https://brainly.in/question/10241170
Order of basicity of amines in gaseous state? - Brainly.in
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