Question Detail
Question
Which group is an activating substituent?
Correct Answer
Option C is the correct answer.
Detailed Explanation
The hydroxyl group (–OH) is an activating substituent (electron-donating) and an ortho-para director. –NO3 is deactivating, –Cl and –F are deactivating (though ortho-para directors).
Hint
Which substituent donates electrons and activates the ring?