Question

Consider the following bromides (Refer Image) :
The correct order of $S_N1$ reactivity is
(a) B > C > A
(b) B > A > C
(c) C > B > A
(d) A > B > C

Answer 1

c)

bcz c has more sterric hindrance by which SN2 would be least as a result SN1 is more likely to be happen