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Question
Which of the following is the correct stability order of given carbocation
(I) CH3−CH2−⊕CH−O−CH3
(II) CH3−C|HCH3−⊕CH2
(III) CH3−CH2−⊕CH−CH3
(IV) CH2=CH−⊕CH−CH3
Which of the following is the correct stability order of given carbocation
(I) CH3−CH2−⊕CH−O−CH3
(II) CH3−C|HCH3−⊕CH2
(III) CH3−CH2−⊕CH−CH3
(IV) CH2=CH−⊕CH−CH3
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Solution
The correct option is C I > IV > III > II
In II and III , II has less stable than III because
II CH3−C|HCH3−⊕CH2 has 1αH
III CH3−CH2−⊕CH−CH3 has 5α−H
Order I > IV > III > II
In II and III , II has less stable than III because
II CH3−C|HCH3−⊕CH2 has 1αH
III CH3−CH2−⊕CH−CH3 has 5α−H
Order I > IV > III > II
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