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Manisha posted an Question

January 08, 2021 • 06:27 am 30 points

Ch,ch

is this order correct? if yes then how 2alpha H is more stable than 3alpha H......if No then what should be the correct order?

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  Dinesh khalmaniya 1

  No, ethyl carbocation is more stable than n propyl carbocation due to more hyperconjugation. check the reference provided by me

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  please correct your ans

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  Priyanshu kumar

  Both ethyl carbocation and n-propyl carbocation are primary carbocation . Yet , n-propyl carbocation is more stable than ethyl carbocation . Because , +I effect of ethyl group is slightly higher than +I effect of methyl group. The dominating factor order is as follows Resonance/Mesomeric > Hyperconjugation >Inductive ethyl carbocation has 3 alpha hydrogen whereas n propylcation has 2 alpha hydrogen..And the inductive effect +I of ethyl group is more than +I of methyl group. Experimentally it is seen that inductive effect in this case dominances. So ,n propyl cabocation is more stable than ethyl carbocation.

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  https://chemistry.stackexchange.com/questions/29000/which-carbocation-is-more-stable-the-ethyl-or-1-propyl-carbocation check this reference

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