Question

the most stable carbocation among the following
CH3-CH2-CH2*
(CH3)3 C-CH*-CH3
CH3-CH2-CH*-CH2-CH3
CH3-CH*-CH2-CH2-CH3

Answer 1

Explanation:

Hyper conjugation provides stability to carbocation. It is proportional to number of alpha hydrogen (adjacent H). 4th option has max (5) alpha hydrogen, so it will be most stable.

Answer 2

The most stable carbocation among the following

Explanation:

Carbo cation

It is the carbon carrying sixet of electrons .

It is formed as a result of heterolytic fission .

For example : A-B -------> A⁺  + B⁻

                                    Carbocation

The stability of carbocation can be explained on the basis of :

More is the electron releasing groups present (alkyl group)  , more they will release electrons , more the positive charge will be neutralized ,hence more stable will be the carbocation .

Now in the above asked question : (CH3)3 C-CH*-CH3

Will be more stable as it has maximum electron releasing groups attached .