Which one of the carbocations from the following is most stable?

Question

Canvas Classes · Accepted Answer

Step 1: Identifying Most Stable Carbocation
Carbocation stability is determined by resonance, inductive effect, and hyperconjugation. 
- Structure (c) is . It is an allylic carbocation where the positive charge is delocalized over the  system.
- Importantly, the methoxy group () is attached to the double bond, providing strong resonance stabilization ( effect) to the cation formed.

Step 2: Conclusion
The presence of the  effect from the oxygen atom makes structure (c) the most stable among thos

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