Chemistry - Nomenclature Question with Solution | TestHub

On the basis of hyperconjugation$(\mathrm{\alpha }-\mathrm{H}-\mathrm{a}\mathrm{t}\mathrm{o}\mathrm{m})$the stability of these carbocations decreases as follows

Hint : Stability of carbocation$\propto$hyperconjugation$\propto$+I effect.