Which of the following compounds undergoes electrophilic substitution more readi

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Question: Which of the following compounds undergoes electrophilic substitution more readily than benzene?

Options:

Correct Answer: Phenol

Solution:

Phenol is more reactive than benzene due to the electron-donating effect of the hydroxyl group, which stabilizes the carbocation intermediate.

Which of the following compounds undergoes electrophilic substitution more readily than benzene?

Which of the following compounds undergoes electrophilic substitution more readily than benzene?

Step 1: Understand what electrophilic substitution means. It is a reaction where an electrophile replaces a hydrogen atom in a compound.
Step 2: Know that benzene is a stable compound that undergoes electrophilic substitution, but some compounds can do it more easily.
Step 3: Identify phenol, which is benzene with a hydroxyl group (-OH) attached.
Step 4: Recognize that the hydroxyl group is electron-donating, meaning it helps to increase the electron density on the benzene ring.
Step 5: Understand that this increased electron density makes it easier for electrophiles to attack the benzene ring in phenol compared to benzene itself.
Step 6: Conclude that phenol undergoes electrophilic substitution more readily than benzene because the hydroxyl group stabilizes the intermediate formed during the reaction.

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