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a) Write the equation for SN^(2) mechani...

a) Write the equation for `SN^(2)` mechanism between `CH_(3)Cl and -OH`. What is the stereochemical aspect of `SN^(2)` reaction? 

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`SN^(2)` mechanism
The nucleophile `OH^(-)` attacks electrons deficient carbon atom from the rear side [back side] of the carbon atom to form a transition state it is unstable. In the transition state a partial `(HO-C)` bond is formed and partial `C - Cl` bond is broken. The product methyl alcohol obtained has inversion configuration.
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