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How many of the following have an activated aromatic ring for electrophilic substitution reaction?
Correct answer is '6'. Can you explain this answer?
Verified Answer
How many of the following have an activated aromatic ring for electrop...
Analysis of Each Structure:
- I (Pyrrole): Activated due to the lone pair of electrons on nitrogen, which can donate to the ring.
- II (Pyridine): Deactivated because nitrogen withdraws electron density from the ring.
- III (Benzene with two methyl groups): Activated by the electron-donating methyl groups (-CH₃).
- IV (Benzene with -NHCOCH₃ group): Activated by the -NH group (amide), which donates electrons.
- V (Benzene with -COCH₃ group): Deactivated by the electron-withdrawing carbonyl group (-C=O).
- VI (Benzene with -NHCOCH₃ group): Activated by the -NH group (amide).
- VII (Naphthalene): Activated, similar to a typical aromatic system.
- VIII (Diphenyl): Activated, typical aromatic system.
- IX (Cyclohexane ring with alkyl): Not aromatic, so not relevant for activation.
- X (Benzaldehyde): Deactivated by the electron-withdrawing aldehyde group (-CHO).
Conclusion:
The compounds with activated aromatic rings are I, III, IV, VI, VII, and VIII.
Thus, there are 6 activated aromatic rings for electrophilic substitution reactions.
Most Upvoted Answer
How many of the following have an activated aromatic ring for electrop...
Rate of electophilic Aromatic substitution reaction ∝ electron density on benzene rinig
Here -Cl & −C∣∣O−CH3NO2,CCl3 groups are electron withdrawing and −CH3−OH,NHCOCH3,−OCOCH3
are electron releasing group.
Here -Cl & −C∣∣O−CH3NO2,CCl3 groups are electron withdrawing and −CH3−OH,NHCOCH3,−OCOCH3
are electron releasing group.
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How many of the following have an activated aromatic ring for electrophilic substitution reaction?Correct answer is '6'. Can you explain this answer? for Class 11 2025 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about How many of the following have an activated aromatic ring for electrophilic substitution reaction?Correct answer is '6'. Can you explain this answer? covers all topics & solutions for Class 11 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for How many of the following have an activated aromatic ring for electrophilic substitution reaction?Correct answer is '6'. Can you explain this answer?.
How many of the following have an activated aromatic ring for electrophilic substitution reaction?Correct answer is '6'. Can you explain this answer? for Class 11 2025 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about How many of the following have an activated aromatic ring for electrophilic substitution reaction?Correct answer is '6'. Can you explain this answer? covers all topics & solutions for Class 11 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for How many of the following have an activated aromatic ring for electrophilic substitution reaction?Correct answer is '6'. Can you explain this answer?.
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