MCQ
Arrange in order of increasing $S_N1$ reaction rate.
  • $iv < ii < iii < i$
  • B
    $i < ii < iii < iv$
  • C
    $iv < i < iii < ii$
  • D
    $iv < i < ii < iii$

Answer

Correct option: A.
$iv < ii < iii < i$
a
More stable the carbocation, more is the rate for $S _N 1$ reaction. Better the leaving group, more is the rate of reaction.

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