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Which compound in each of the following pairs will react faster in SN2 reaction with OH−? CH3Br or CH3I - Chemistry

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Question

Which compound in each of the following pairs will react faster in SN2 reaction with OH?

CH3Br or CH3I

Solution

 In the SN2 mechanism, the reactivity of halides for the same alkyl group increases in the order. This happens because as the size increases, the halide ion becomes a better leaving group.

R−F << R−Cl < R−Br < R−I

Therefore, CH3I will react faster than CH3Br in SN2 reactions with OH.

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APPEARS IN

 NCERT Solution for Chemistry Textbook for Class 12 (2018 (Latest))
Chapter 10: Haloalkanes and Haloarenes
Q: 9.1 | Page no. 311
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Video TutorialsVIEW ALL [1]

Which compound in each of the following pairs will react faster in SN2 reaction with OH−? CH3Br or CH3I Concept: Classification of Haloalkanes and Haloarenes.
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