Which of the following compounds will undergo electrophilic substitution the fas

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Question: Which of the following compounds will undergo electrophilic substitution the fastest?

Options:

Correct Answer: Ethylbenzene

Solution:

Ethylbenzene will undergo electrophilic substitution the fastest due to the electron-donating effect of the ethyl group.

Which of the following compounds will undergo electrophilic substitution the fastest?

Which of the following compounds will undergo electrophilic substitution the fastest?

Step 1: Understand what electrophilic substitution is. It is a reaction where an electrophile replaces a hydrogen atom in an aromatic compound.
Step 2: Identify the compounds given in the question. In this case, we are focusing on ethylbenzene.
Step 3: Recognize that the presence of groups attached to the benzene ring can affect the speed of the reaction.
Step 4: Know that electron-donating groups (like the ethyl group) make the benzene ring more reactive towards electrophiles.
Step 5: Conclude that since ethylbenzene has an ethyl group that donates electrons, it will undergo electrophilic substitution faster than compounds without such groups.

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