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What is the IUPAC name of the compound with the structure of a benzene ring with

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Question: What is the IUPAC name of the compound with the structure of a benzene ring with a nitro group and a methyl group at the 1 and 2 positions respectively?

Options:

  1. 2-Nitrotoluene
  2. 1-Nitrotoluene
  3. 2-Methyl-1-nitrobenzene
  4. 1-Methyl-2-nitrobenzene

Correct Answer: 1-Methyl-2-nitrobenzene

Solution: 

The correct IUPAC name is 1-Methyl-2-nitrobenzene, indicating the positions of the substituents on the benzene ring.

What is the IUPAC name of the compound with the structure of a benzene ring with

Practice Questions

Q1
What is the IUPAC name of the compound with the structure of a benzene ring with a nitro group and a methyl group at the 1 and 2 positions respectively?
  1. 2-Nitrotoluene
  2. 1-Nitrotoluene
  3. 2-Methyl-1-nitrobenzene
  4. 1-Methyl-2-nitrobenzene

Questions & Step-by-Step Solutions

What is the IUPAC name of the compound with the structure of a benzene ring with a nitro group and a methyl group at the 1 and 2 positions respectively?
  • Step 1: Identify the main structure of the compound, which is a benzene ring.
  • Step 2: Determine the substituents on the benzene ring. In this case, there is a nitro group (-NO2) and a methyl group (-CH3).
  • Step 3: Identify the positions of the substituents on the benzene ring. The methyl group is at position 1 and the nitro group is at position 2.
  • Step 4: Use the IUPAC naming convention, which states that the substituents should be named in alphabetical order, but the position numbers should reflect their actual locations on the ring.
  • Step 5: Combine the names and positions of the substituents with the name of the benzene ring. The methyl group is named first because 'M' comes before 'N' in the alphabet.
  • Step 6: Write the final IUPAC name as 1-Methyl-2-nitrobenzene.
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