Carbocation stability
`overset+CH_(3)ltCH_(3)overset+CH_(2)lt(CH_(3))_(2)overset+CH lt (CH_(3))_(3)overset+C:`
Alkyl radical stability

Which of the following carbocation is most stable ? (a) (CH_(3))_(3)C.overset(+)CH_(2) (b) (CH_(3))_(3)overset(+)C (c) CH_(3)CH_(2)overset(+)CH_(2) (d) CH_(3)overset(+)CHCH_(2)CH_(3)

Which of the following carbocation is most stable ? (a) (CH_(3))_(3)C.overset(+)CH_(2) (b) (CH_(3))_(3)overset(+)C (c) CH_(3)CH_(2)overset(+)CH_(2) (d) CH_(3)overset(+)CHCH_(2)CH_(3)

Which of the following carbocation is most stable ? (a) (CH_(3))_(3)C.overset(+)(C )H_(2) (b) (CH_(3))_(3)overset(+)(C ) (c ) CH_(3)CH_(2)overset(+)(C )H_(2) (d) CH_(3)overset(+)(C )HCH_(2)CH_(3)

The stability order of alkyl free radicals is: (CH_(3))_(3) overset(.)C gt (CH_(3))_(2) overset(.)CH gt CH_(3) overset(.)CH_(2) gt overset(.)CH_(3)

Arrange the following according to increasing stability: underset((I))(CH_(3)CH_(2)CH_(2)overset(+)(CH_(2))) , underset((II))((CH_(3))_(3)overset(+)(C)) , underset((III))(CH_(3),CH_(3)CH_(2)overset(+)(CH_(3)))