JEE Main | 2014General Organic ChemistryMedium
Question
In SN2 reactions, the correct order of reactivity for the following compounds
CH3Cl, CH3CH2Cl, (CH3)2CHCl and (CH3)3CCl is
CH3Cl, CH3CH2Cl, (CH3)2CHCl and (CH3)3CCl is
Options
A.CH3Cl > (CH3)2CHCl > CH3CH2Cl > (CH3)3CCl
B.CH3Cl > CH3CH2Cl > (CH3)2CHCl > (CH3)3CCl
C.CH3CH2Cl > CH3Cl > (CH3)2CHCl > (CH3)3CCl
D.(CH3)2CHCl > CH3CH2Cl > CH3Cl > (CH3)3CCl
Solution
Rate of SN2 reaction depends on steric crowding of alkyl halide. So order is
CH3Cl > (CH3)CH2 - Cl > (CH3)2CH - Cl > (CH3)3CCl
CH3Cl > (CH3)CH2 - Cl > (CH3)2CH - Cl > (CH3)3CCl
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