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S(N)2 mechanism proceeds through formati...

`S_(N)2` mechanism proceeds through formation of `:`

A

carbocation

B

transition state

C

free radical

D

carbanion

Text Solution

Verified by Experts

The correct Answer is:
B
transition state
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S_(N)1 // S_(N)2 proceeds through the formation of a carbocation.

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Assertion (A) Hydrolysis of (-)-2-bromooctane proceeds with inversion of configuration Reason (R) This reaction proceeds through the formation of a carbocation.

Alkylhalides have polar C-X bond and undergo nucleophilic substitution reactions. These give a variety of products with nucleophiles such as -OH, -OR, -NH_(2), -CN, -NC, -NO_(2), -ONO, RCOO^(-) , etc. They undergo mainly two types of nucleophilic substitution reactions, S_(N)1 and S_(N)2 . S_(N)1 reactions are two steps reactions which proceed through the formation of carbocations while S_(N)2 reactions are one step reaction which proceeds through the formation of transition state. The stability of carbocation and transition state determine the reactivity of alkyl halides. Which out of S_(N)1 or S_(N)2 results into inversion of configuration?