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+1 vote
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in Haloalkanes and Haloarenes by (26.7k points)
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a. In the following pair of halogen compounds which undergo SN2 reactions faster.

  1. C6H2 – CH2 – CI and C6 H3 -C
  2. CH3 – CH2 – CH2 – CI and CH3 – CH2 – CH2 – I

b.  (i) CH3 -CH2 -CH = CH2 + HBr + Peroxide → ?

(ii)  CH3 - CH2 - Br + KCN → ?

1 Answer

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by (26.2k points)
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Best answer

a. Undergo SN2 reactions faster 

1. C6H5CH2CI 

2. CH3 -CH2 -CH2 -I (R-I bond is weaker than R-CI bond)

b. (i) CH3 -CH2 -CH2 -CH2 Br 

(ii) CH3 -CH2 -CN

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