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JEE Advanced 2013Paper 1
Exam
JEE Advanced
Year
2013
Paper
Paper 1
Subject
Chemistry
Chapter
General Organic Chemistry

JEE Advanced 2013 · Paper 1 · Chemistry · General Organic Chemistry

KI in acetone, undergoes S N 2 reaction with each of P, Q, R and S....

KI in acetone, undergoes SN2 reaction with each of P, Q, R and S. The rates of the reaction vary as
KI in acetone, undergoes S N 2 reaction with each of P, Q, R and S. The rates of the reaction vary as

 

Options

  1. AP>Q>R>S\text{P} > \text{Q} > \text{R} > \text{S}
  2. BS>P>R>Q\text{S} > \text{P} > \text{R} > \text{Q}
  3. CP>R>Q>S\text{P} > \text{R} > \text{Q} > \text{S}
  4. DR>P>S>Q\text{R} > \text{P} > \text{S} > \text{Q}

Correct answer

B. S>P>R>Q\text{S} > \text{P} > \text{R} > \text{Q}

Step-by-step solution

Relative reactivity for SN2 reaction in the given structures is
 

 Substrate  KI in acetone, undergoes S N 2 reaction with each of P, Q, R and S. The rates of the reaction vary as CH3Cl H2C = CH - CH2ClKI in acetone, undergoes S N 2 reaction with each of P, Q, R and S. The rates of the reaction vary as
 Relative Rates Towards SN2  100000  200  79  0.02 
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