Which of the following carbocations is the most stable?

Question

Quizplus · Accepted Answer

Carbocation II is the most stable because it is a tertiary carbocation, meaning it has three alkyl groups attached to the positively charged carbon. This increases the electron density around the carbon, making it less likely to attract electrons and form a bond with a nucleophile. Carbocation I is a secondary carbocation, while carbocations III and IV are primary carbocations, making them less stable than carbocation II.

Which of the Following Carbocations Is the Most Stable