InterviewSolution
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InterviewSolution
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Arrange the following carbocations in order of increasing stability I. `(CH_(3))_(3)C CH_(2)^(+)` II. `(CH_(3))_(3)C^(+)` III. `CH_(3)CH_(2)CH_(2)^(+)` IV. `CH_(3)-overset(+)(C)H - CH_(3)`A. `IV lt III lt II lt I`B. `III lt IV lt I lt II`C. `I lt III lt IV lt II`D. `II lt IV lt III lt I` |
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Answer» Correct Answer - C `(CH_(3))_(3)overset(+)(C)` (II) is stabilized by nine, `CH_(3)overset(+)(C)HCH_(3)(IV)` is stabilized by six, `CH_(3)CH_(2)CH_(2)^(+)` (III) is stabilized by two while `(CH_(3))_(3)C CH_(2)^(+)` (I) has no hyperconjugation structure. Therefore, II is the most stable, followed IV, then by III while I is the least stable. Thus, option (c) is correct. |
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