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Hi, I need help solving the following problem and understanding how itcan be sol

ID: 687169 • Letter: H

Question

Hi,

I need help solving the following problem and understanding how itcan be solved. Please help!

Which SN2 reaction will occur most rapidly in aqueousacetone solution? Assume concentrations and temperature are thesame in each instance.
a)HO- + CH3Cl ----> CH3OH +Cl-
b)HO- + CH3CH2Cl ---->CH3CH2OH + Cl-
c)HO- + (CH3)2CHCl ---->(CH3)2CHOH + Cl-
d)HO- + (CH3)3CCl ---->(CH3)3COH + Cl-
e)HO- + (CH3)3CCH2Cl----> (CH3)3CCH2OH +Cl-

Thanks!

Explanation / Answer

a)HO- + CH3Cl ----> CH3OH +Cl- The order of reactivities in SN 2 is : Methyl > Primary> secondary > tertiary