JEE Main 2013ChemistryGeneral Organic ChemistryHardMCQ

JEE Main 2013 — General Organic Chemistry Question with Solution

JEE Main 2013 (07 Apr)

Question

The order of stability of the following carbocations:

Choose an option

Show full solutionCorrect option: B
Correct answer
B III > I > II

Step-by-step explanation

CH 2 = CH - C ⊕ H 2 ↔ C ⊕ H 2 - CH = CH 2

         (I)  (Stabilised by delocalisation ( 2 eq. R.S.) )

CH 3 - CH 2 - C ⊕ H 2

         (II)  (Stabilised by only + I & hyperconjugation)(2 conjugated C-H)



III is stabilised by maximum delocalisation ( 4 R.S.)

The order of stability is III > I > II

Order of stability is:

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About this question

This is a previous-year question from JEE Main 2013, covering the General Organic Chemistry chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.