Which of the followig statements are correct about the reactivities of `(I) n-` propyl chloride and `(II)` allyl chloride.

Options

A. Rate of `SN^(1)` reaction of `(I) gt (II)`
B. Rate of `SN^(1)` reaction of `(II) gt (I)`
C. Rate of `SN^(2)` reaction of `(I) gt (II)`
D. Rate of `SN^(2)` reaction of `(II) gt (I)`

Answer

`(b,d)`

Explanation

Allyl cloride is much more reactive than `n-PrCl` although is it `1^(@) RX` , due to resonance stablisation.

(Stabillsed by extended `pi-` bonding)
Allyl chloride is reactive by `SN^(1)` mechnism.