The most stable carbocation is PhCH2 CH2 Me 2) Me CH2 3) Me Me CH2 4) Me Me

Among the following carbocations : "(I) "Ph_(2)C^(+)CH_(2)Me" (II) "PhCH_(2)CH_(2)CH^(+)Ph "(III) "Ph_(2)CHCH^(+)Me" (IV) "Ph_(2)C(Me)CH_(2)^(+) The order of stability is

Order of stability of the carbocations: ph_(2)overset(oplus)(C)CH_(2)Me(I), " " phCH_(2)CH_(2)overset(oplus)(C)Hph(II), " " ph_(2)CHoverset(oplus)(C)HMe(III)and ph_(2)C(Me)overset(oplus)(C)H_(2)(IV) is-

Among the following carbocations : (I) Ph_(2)overset(+)"C"CH_(2)Me (II) PhCH_(2)CH_(2)overset(+)"C"HPh "(III) "Ph_(2)CHoverset(+)"C"HMe" (IV) "Ph_(2)C(Me)overset(+)"C"H_(2) the order of stability is :

MeCH_(2)CH=CH_(2) is stable than Me_(2)C=CH_(2) because-

IUPAC name is CH_3-C(Me)_2-CH_2-CH_3

Arrange in decreasing order of their strenght and give reasons: Me_(2)CHCOOH,Me_(3)C COOH,CH_(3)CH_(2)COOH