Question

Arrange these compounds in order of increasing S_N1 reaction rate:

• A. IV < II < III < I
• B. I < II < III < IV
• C. IV < I < III < II
• D. IV < I < II < III

Answer 1

The correct option is A IV < II < III < I

More stable the carbocation, more is the rate for S_N1 reaction. Better the leaving group, more is the rate of reaction.