Among the following compounds which can be readily sulphonated:
Correct answer: A. Phenol
- A. Phenol
- B. Benzene
- C. Nitrobenzene
- D. Chlorobenzene
Explanation
Sulphonation of phenol at high temperature gives predominantly para isomer i.e. 4-phenol sulphonic acid.
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About Benzene and Aromatic Compounds
Benzene has a planar ring of delocalised π electrons, giving aromatic stability and equal carbon-carbon bond lengths. The topic covers resonance, electrophilic substitution reactions such as nitration, halogenation, sulphonation and Friedel-Crafts reactions, along with substituent effects and the distinction between substitution in benzene and addition in ordinary alkenes.
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