Are the Methyl Groups in Xylene, C₆H₄(CH₃)₂, Included in the Aromatic

question 130

Multiple Choice

Are the methyl groups in xylene, C₆H₄(CH₃) ₂, included in the aromatic part of the molecular structure?

• A)Yes, the aromatic bonding extends throughout the molecule.
• B)Yes, but only when the resonance form with double bonds to the methyl groups exists.
• C)No, only the carbons in the ring are involved in the aromatic system.
• D)No, only the hydrogens in the ring are involved in the aromatic bonding.
• E)No, only the carbon atoms in xylene are involved in aromatic bonding, not the hydrogens.

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