Rank the stability of the carbocations from most stable to least stable? 3º carbocation > 20 carbocation > 10 carbocation o all carbocations have the same stability O 1° carbocation > 20 carbocation > 3º carbocation 2° carbocation > 10 carbocation > 3º carbocation

3° carbocation > 2° carbocation > 1° carbocation

Explanation:

Stability of carbocation -

Carbocation, is an electron deficient species, with 6 electrons,

being an electron deficient species, the carbocation can be stabilized by any group, which gives electron to the carbocation.

hence,

comparing the case of of a 3° carbocation and a 2° carbocation.

The 3° carbocation, is more stable, due to the presence of three alkyl groups, which donates the electron density to the electron deficient site of the carbocation, hence, is stable,

but in case of 2° carbocation, there are only two electron donating, alkyl groups, hence, comparing 3° and 2° carbocation, 3° is more stable.

and,

In case of 1° carbocation, there is only one electron donating, alkyl groups, hence, it is least stable.

Therefore,

The order of the stability of the carbocation is -

3° carbocation > 2° carbocation > 1° carbocation