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Organic Reaction Mechanisms II: Electrophilic and Radical Reactions
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Electrophilic aromatic substitution: mechanism and directing effects
JEE Main level
Single correct option
Difficulty 2 of 3
o2126
Benzoic acid is treated with
Br
X
2
and
FeBr
X
3
. The major product is
A
bromobenzene
B
3-bromobenzoic acid
C
2-bromobenzoic acid
D
4-bromobenzoic acid
Answer: B
The
−
COOH
group is deactivating and meta directing, since it withdraws electrons by -I and -M effects. Substitution occurs at the meta position.
Practice Organic Reaction Mechanisms II: Electrophilic and Radical Reactions
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