Question

In ethers the numbering of the parent chain is done in a way:

• A. that the carbon atom linked to the -O-atom gets the lowest number.
• B. that the carbon atom linked to the -O-atom gets the highest number.
• C. that the carbon atom which comes from parental hydrocarbon linked to the -O-atom gets the lowest number
• D. none of these

Answer 1

The correct option is A that the carbon atom linked to the -O-atom gets the lowest number.

While doing the numbering of longest parent chain in the ether, it is ensured that the carbon atom linked to the $-O-$ atom gets the lowest number, according to IUPAC nomenclature.