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The IUPAC name of H3C – CH – CH – CH2 – CH2 – CH – CH3 | CH3 CH3

  1. 1, 3-isopropyl-3-methylpropane
  2. 2, 3, 6-trimethylheptane
  3. 2, 5, 6-trimethylheptane
  4. 2, 6, 3-trimethylheptane

Correct answer: 2, 3, 6-trimethylheptane

Solution

The longest carbon chain has 7 carbons, making it heptane. The substituents are methyl groups at positions 2, 3, and 6. Thus, the correct IUPAC name is 2, 3, 6-trimethylheptane.

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