Q. The correct structure of 5-(2-chlorobutoxy) pentanoyl chloride is

 1457  163 Organic Chemistry – Some Basic Principles and Techniques Report Error

Solution:

Acid chloride group has higher priority than ether group. Also there is a chloro locant in ether group, the ether group is also numbered besides the parent chain
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Numbering of ether branch is done starting from carbon directly bonded to oxygen