MEDIUMMCQ SINGLEJEE Mains ChemistryOrganic ChemistryHydrocarbonsPrevious Year Questions

Which one is the most reactive towards electrophilic reagent? (AFMC 2010) (a) (b) (c) (d)

Answer

Explanation

The phenolic group increases the electron density present on the benzene ring. Thus o-cresol is most reactive towards electrophilic substitution reaction. Decreasing order of activating influence is: 2 NH OH OR NHCOR Ph R Hence, the correct option is (b).

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