Question:
Which of the following statements are correct about aromatic compounds?
Which of the following statements are correct about aromatic compounds?
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Oxidation of alkylbenzenes requires at least one H on the benzylic carbon. No H = No Reaction!
Updated On: May 15, 2026
- A and B only
- A and C only
- A and D only
- A, B and D only
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The Correct Option is C
Solution and Explanation
Step 1: Concept This question covers Friedel-Crafts reactions, radical reactions, and electrophilic substitution mechanisms.
Step 2: Meaning We must evaluate each transformation or mechanism statement for chemical accuracy.
Step 3: Analysis (A) Correct: Isopropyl benzene (cumene) is formed via carbocation rearrangement when using propyl chloride. (B) Incorrect: Styrene with HBr gives 1-bromo-1-phenylethane (Markovnikov), not bromobenzene. (C) Incorrect: $t$-butyl benzene lacks a benzylic hydrogen, so it is resistant to $KMnO_{4}$ oxidation. (D) Correct: The arenium ion (Wheland intermediate) is the standard intermediate in electrophilic aromatic substitution.
Step 4: Conclusion Statements A and D are the only correct ones. Final Answer: (C)
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