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)

Arrange the following carbocations in order of increasing stability I

1.	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)
Answer» `IV lt III lt II lt I` `III lt IV lt I lt II` `I lt III lt IV lt II` `II lt IV lt III lt I` Solution :`(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 twowhile `(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.