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Grade: 12th pass

                        

Please give me the correct stability order for Cabocation. In different books different orders are thereWhich is correct

4 years ago

Answers : (3)

Vikas TU
12274 Points
							
Hi,
for the stability of carbocation always remember this trick,
+MR HI
This is the order of checking the stability in sequence wise.
+M => +mesomeric effect {learn the +M effect showing series}
Resonance
Hyperconjugation
+I effect {+r effect}
 
4 years ago
Umakant biswal
5359 Points
							
@ joseph 
1- increasing substitution increaseas stability 
we look at the no. of bonding electrons that are attached to carbocation beacuse those bonding electrons , will help in allivating the +ve charge . 
bonding electron from adjacent sigma bond may overlap with the unoccupied p orbital of the carbocation . 
this is what we called hyperconjugation . 
since the overlap supplies electron density to the electron deficient carbocation carbon , we predict the increasing number of hyperconjugative interactions increase carbocation stability . 
increasing the no of bonds adjacent to carbocation by increasing the no. of alkyl group , attached to carbocation carbon result in increasing the stability . 
thatswhy tertiary should be more stable than secondary . 
so, primary
BUT this case might vary case by case , 
if u have any kind of exception example then u can ask , i will give the reason 
all the best 
4 years ago
Amay chugh
29 Points
							Generally the stability of carbocation is tertiary > secondary > primary > methyl this is generally decided by mesomerism ,inductive effect and the hyperconjugation
						
4 years ago
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