MCQ
Find out correct stability order in the following carbocations
  • $IV > I > III > II$
  • B
    $IV > III > I > II$
  • C
    $I > IV > III > II$
  • D
    $I > III > IV > II$

Answer

Correct option: A.
$IV > I > III > II$
a
$iv-$stabilized by back bonding, $3^o$ carbocation more stable than $1^o$ $\&$ carbocation in IInd option is at bridge head (Unstable due to angle strain)

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