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The substitution of which group increases the antiseptic action?(a) Methyl(b) Ethyl(c) Aromatic(d) All of the mentionedThis question was addressed to me in homework.Enquiry is from Effects of Alkylation topic in portion Alkylation of Unit Processes

Answer»

The correct choice is (a) Methyl

Best EXPLANATION: Phenol was the FIRST antiseptic used, and a thorough study of its derivatives has been made. The SUBSTITUTION of a methyl group for the hydrogen in the ring of phenol, forming the CRESOLS, INCREASES the antiseptic action.



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