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QJEEM20Cha732: JEE Main 2020 Chemistry - Class 12 JEEM20Cha732 Solution: The decreasing order of reactivity of the following compounds…

The decreasing order of reactivity of the following compounds towards nucleophilic substitution (SN2) is : JEE Main 2020 (Online) 3rd September Evening Slot Chemistry - Haloalkanes and Haloarenes Question 106 English

Multiple Choice Options

  • A (IV) > (II) > (III) > (I)
  • B (II) > (III) > (IV) > (I)
  • C (II) > (III) > (I) > (IV)
  • D (III) > (II) > (IV) > (I)

Step-by-Step Verified Solution

JEE Main 2020 (Online) 3rd September Evening Slot Chemistry - Haloalkanes and Haloarenes Question 106 English Explanation

–NO2 group present at ortho and para position deactivate the benzene ring and making the carbon attached to ring (–CH2Cl) group more electrophilic for the incoming nucleophile to give SN2 reaction but rate of SN2 reaction decreases as hindrence increases around the electrophilic carbon.

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