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Which of the following is a meta-directing group in electrophilic aromatic subst

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Question: Which of the following is a meta-directing group in electrophilic aromatic substitution?

Options:

  1. –NO2
  2. –OH
  3. –CH3
  4. –Cl

Correct Answer: –NO2

Solution: 

The –NO2 group is a meta-directing group because it withdraws electrons from the aromatic ring, directing incoming electrophiles to the meta position.

Which of the following is a meta-directing group in electrophilic aromatic subst

Practice Questions

Q1
Which of the following is a meta-directing group in electrophilic aromatic substitution?
  1. –NO2
  2. –OH
  3. –CH3
  4. –Cl

Questions & Step-by-Step Solutions

Which of the following is a meta-directing group in electrophilic aromatic substitution?
  • Step 1: Understand what a meta-directing group is. A meta-directing group is a substituent on an aromatic ring that directs incoming electrophiles to the meta position when a reaction occurs.
  • Step 2: Identify the –NO2 group. The –NO2 group is known as a nitro group.
  • Step 3: Learn about electron withdrawal. The –NO2 group withdraws electrons from the aromatic ring, making it less reactive at the ortho and para positions.
  • Step 4: Determine the directing effect. Because the –NO2 group withdraws electrons, it directs electrophiles to the meta position instead of the ortho or para positions.
  • Step 5: Conclude that the –NO2 group is a meta-directing group in electrophilic aromatic substitution.
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