In the nucleophilic substitution reactio...

In the nucleophilic substitution reactions `( S_(N) 2` or `S_(N)1` ) , the reactivity of alkyl halids follows the sequence

`R-I gt R-Br gt R-Cl gt R- F`

`R-Cl gt R-F gt R-Br gt R- I`

`R-F gt R-Cl gt R-Br gt R- I`

`R-I gt R-F gt R-Cl gt R- Br`

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In S_(N)1 reaction, the order of reactivity of halides is

In Nucleophilic substitution reactions halides are less reactive due to :

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. Arrange the following in the increasing order of reactivity towards S_(N)2 reaction:

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?

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