Question
Question: When the concentration of alkyl halide is tripled and the concentration of 
ion is reduced to half, the rate of SN2reaction increases by:
A
3 times
B
2 times
C
1.5 times
D
6 times
Answer
1.5 times
Explanation
Solution
Rate of SN2 a [R – X ] [Nu–]
SN2 a [R – X ] [Nu–]
r2 = 1.5 r1