JEE Main · 2024 · Shift-IIeasyHC-131

Correct order of reactivity in electrophilic substitution reaction of the following compounds is:

Hydrocarbons · Class 11 · JEE Main Previous Year Question

Question

Correct order of reactivity in electrophilic substitution reaction of the following compounds is: image

Options
  1. a

    B > C > A > D

  2. b

    D > C > B > A

  3. c

    A > B > C > D

  4. d

    B > A > C > D

Correct Answerd

B > A > C > D

Detailed Solution

Step 1: Analyzing EAS Reactivity Electrophilic Aromatic Substitution (EAS) reactivity is increased by electron-donating groups and decreased by electron-withdrawing groups.

  • Toluene (B): \ceCH3\ce{-CH3} is activating via +I+I and hyperconjugation.
  • Benzene (A): The reference compound.
  • Chlorobenzene (C): \ceCl\ce{-Cl} is deactivating due to its strong I-I effect (which outweighs +R+R).
  • Nitrobenzene (D): \ceNO2\ce{-NO2} is strongly deactivating via I-I and R-R effects.

Step 2: Conclusion The correct order of reactivity is: B > A > C > D.

Answer: (d) B > A > C > D\boxed{\text{Answer: (d) B > A > C > D}}

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Correct order of reactivity in electrophilic substitution reaction of the following compounds is: (JEE Main 2024) | Canvas Classes