A

`P gt Q gt R gt S`

B

`Q gt R gt S gt P`

C

`P gt R gt Q gt S`

D

`R gt S gt Q gt P`

Text Solution

Verified by Experts

The correct Answer is:
B
Rate of `S_(N)1` reaction depends on following factors :
(a) As the stability of cation increases rate of reaction increases
Rate of reaction increases with better leaving groups
(c ) Electron donating groups increases rate of reaction.
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