Which of the following numberings is correct?

Which of the following numberings is correct?
  1. A
  2. B
  3. $\mathrm{C}$
  4. $\mathrm{D}$

Solution


The highest priority functional group is the double bond, and the carbon chain must be numbered such that this functional group is given the lowest number carbon. This is then followed by the lowest numbering of both halogen groups. Therefore, (D) is the correct numbering. ,

Asked in: JEE-TOPICTESTS-CHEMISTRY

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