Multiple choice In which of the following cases friedal craft reaction is not possible? C6H5OH C6H5NH2 C6H5NO2 C6H5CH3 Reveal answer Fill a bubble to check yourself C Correct answer Explanation In C6H5NO2, the electron withdrawing group -NO2 deactivates the benzene ring to the extent that it cannot respond to Friedel Craft reaction. Hence, this option is correct.