Which compound in each of the following pairs will react faster in SN2

1.	Which compound in each of the following pairs will react faster in SN2 reaction with OH ion? 1. CH3Br or CH3I 2. (CH3)3 CCl or CH3Cl
Answer» 1. Since I^- ion a better leaving group than Br^- ion, therefore CH₃I will react faster than CH₃Br in S_N2 reaction with OH^- ion. 2. On steric grounds 1° alkyl halides are more reactive than tert alkyl halide in S_N2 reactions. Therefore, CH₃Cl will react at a faster rate than (CH₃)₃ CCl in a S_N2 reaction with OH^- ion.

Which compound in each of the following pairs will react faster in SN2 reaction with OH ion? 1. CH3Br or CH3I 2. (CH3)3 CCl or CH3Cl

Answer»

1. Since I^- ion a better leaving group than Br^- ion, therefore CH₃I will react faster than CH₃Br in S_N2 reaction with OH^- ion.

2. On steric grounds 1° alkyl halides are more reactive than tert alkyl halide in S_N2 reactions. Therefore, CH₃Cl will react at a faster rate than (CH₃)₃ CCl in a S_N2 reaction with OH^- ion.

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Which compound in each of the following pairs will react faster in SN2 reaction with OH ion? 1. CH3Br or CH3I 2. (CH3)3 CCl or CH3Cl

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