Chemistry - GOC Question with Solution | TestHub

${\mathrm{CH}}_3\stackrel{+}{\mathrm{C}}\mathrm{H}{\mathrm{CH}}_2{\mathrm{CH}}_2{\mathrm{CH}}_3$ is the most stable carbocation among the given carbocations. It is because the number of $\alpha$ - $\mathrm{H}$ atom attached to carbocation is maximum in ${\mathrm{CH}}_3\stackrel{+}{\mathrm{C}}{\mathrm{CH}}_2{\mathrm{CH}}_2{\mathrm{CH}}_3$. Thus, it has maximum number of hyperconjugating structure hence, it is most stable.