The decreasing order of reactivity of the following compounds towards nucleophilic
Question:

The decreasing order of reactivity of the following compounds towards nucleophilic substitution $\left(\mathrm{S}_{\mathrm{N}}^{2}\right)$ is :

 

  1. $(\mathrm{IV})>(\mathrm{II})>(\mathrm{III})>(\mathrm{I})$

  2. (II) $>$ (III) $>$ (IV) $>$ (I)

  3. (II) $>$ (III) $>$ (I) $>$ (IV)

  4. (III) $>$ (II) $>$ (IV) $>$ (I)


Correct Option: , 2

Solution:

 

 

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