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Which of the carbocations is the most st...

Which of the carbocations is the most stable?
(i) `CH_(3)CH_(2)overset(oplus)(C)H_(2)`
(ii) `CH_(2)=CH-overset(oplus)(C)H_(2)`
(iii) `C_(6)H_(5)overset(oplus)(C)H_2`
(iv) All are equally stable.

Text Solution

Verified by Experts

(i), (ii) and (iii) are all primary carbocations. Cations (i), (ii) and (iii) have 0, 2 and 4 resonance structures respectively. So carbocation (iii) is most stable.
`[CH_(2)=CH-overset(oplus)(C)H_(2)harroverset(oplus)(C)H_(2)-CH=CH_(2)]`
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CHHAYA PUBLICATION-ORGANIC CHEMISTRY : BASIC PRINCIPLES AND TECHNIQUES -WARM UP EXERICSE
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