Features of the SN2 mechanism

1. A.
   Single step mechanism.
2. B.
   Backside attack of nucleophile.
3. C.
   Formation of planar carbocation intermediate.
4. D.
   Involves simultaneous bond breaking and bond forming.

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1. A.
   Single step mechanism
2. B.
   Backside attack of nucleophile
3. C.
   Formation of planar carbocation intermediate
4. D.
   Involves simultaneous bond breaking and bond forming

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1. A.
   The $\mathrm{SN^2}$ mechanism proceeds mainly with racemization.
2. B.
   The $\mathrm{SN^2}$ mechanism includes a transition state with penta coordinating carbon.
3. C.
   The $\mathrm{SN^2}$ mechanism involves formation of planar carbocation intermediate in the first step.
4. D.
   The $\mathrm{SN^2}$ mechanism involves formation of carbocation with $\mathrm{SP^2}$ hybridized carbon.

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1. A.
   Single step mechanism
2. B.
   Backside attack of nucleophile
3. C.
   Formation of planar carbocation intermediate
4. D.
   Involves simultaneous bond breaking and bond forming

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1. A.
   The rate of reaction depends upon both substrate and reagent.
2. B.
   The complete mechanism takes place in single step.
3. C.
   The transition state is stable.
4. D.
   There is a inversion of configuration.

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