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CHEMISTRY, M7 2022 HSC 7 MC

The name 2-ethyl-3-chlorohexane does not follow IUPAC conventions.

What is the systematic name of this organic compound?

  1. 3-chloro-2-ethylhexane
  2. 4-chloro-3-methylheptane
  3. 4-chloro-5-ethylhexane
  4. 5-methyl-4-chloroheptane
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`B`

Show Worked Solution
  • When drawn, the organic compound contains a carbon chain of 7 carbon atoms.
  • The methyl group should be numbered with the lower carbon number. Thus, the correct name IUPAC name is 4-chloro-3-methylheptane.

`=> B`


♦ Mean mark 43%.