CBSE Class 12-science Answered
Explain sn2 reaction...
Asked by Amee | 04 Dec, 2012, 02:06: PM
Expert Answer
Substitution nucleophilic bimolecular (S N 2)
As you can see, this reaction takes place using only 1 step.
In that one step, the nucleophile attacks the halide and the chloride ion leaves at the same time.
Therefore no intermediate is formed in this case.
The rate of this reaction therefore depends on this one step only. Now the less bulky the groups around carbon, the easier it is for the nucleophile to attack it. So, primary halides react more than secondary halides which react more than tertiary halides using the SN2 mechanism.
Answered by | 04 Dec, 2012, 05:33: PM
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