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JEE Main 20146 April
Exam
JEE Main
Year
2014
Date
6 April
Subject
Chemistry
Chapter
Haloalkanes and Haloarenes

JEE Main 2014 · 6 April · Chemistry · Haloalkanes and Haloarenes

In S N 2 reactions, the correct order of reactivity for the...

In SN2 reactions, the correct order of reactivity for the following compounds :
CH3Cl, CH3CH2Cl, (CH3)2CHCl and (CH3)3CCl is :In S N 2 reactions, the correct order of reactivity for the following compounds : CH 3 Cl, CH 3 CH 2 Cl, (CH 3 ) 2 CHCl

Options

  1. ACH3Cl > (CH3)2CHCl > CH3CH2Cl > (CH3)3CCl
  2. BCH3Cl > CH3CH2Cl > (CH3)2CHCl > (CH3)3CCl
  3. CCH3CH2Cl > CH3Cl > (CH3)2CHCl > (CH3)3CCl
  4. D(CH3)2CHCl > CH3CH2Cl > CH3Cl > (CH3)3CCl

Correct answer

B. CH3Cl > CH3CH2Cl > (CH3)2CHCl > (CH3)3CCl

Step-by-step solution

SN2{\text{S}}_{\text{N}}\text{2} involves the formation of a pentavalent intermediate, and the reactivity depends on steric hindrance. Lesser the steric hindrance, more is the reactivity of SN2{\text{S}}_{\text{N}} 2.

In S N 2 reactions, the correct order of reactivity for the following compounds : CH 3 Cl, CH 3 CH 2 Cl, (CH 3 ) 2 CHCl

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