Q12 · CSIR NET Chemistry, December 2013
Paper: CSIR NET December 2013 · Subject: Organic Chemistry · Chapter: General Organic Chemistry · Topic: Aromaticity · Marks: 2 · Difficulty: Medium
The correct order for the rates of electrophilic aromatic substitution of the following compound is 
(I) (II) (III)
(I) (II) (III)(a)I $>$ II $>$ III
(b)II $>$ I $>$ III
(c)III $>$ II $>$ I
(d)I $>$ III $>$ II
Answer
Answer: D ✓ checked by 4AB · confidence high
Explanation
N-Methylindole (π-excessive) ≫ chlorobenzene (mildly deactivated) > pyridine (π-deficient and protonated under SEAr conditions). I > III > II (d).
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