In the IUPAC name of following compound, there is something wrong. Find the mistake.

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Principal functional group is incorrectly chosen

Incorrect prefix for locant is used

Parent chain is incorrectly selected

Locants name is not written in order of priority recommended by IUPAC

answer is C.

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Detailed Solution

Here, amide group has higher priority than keto group, therefore former is the principal functional group and later is a locant. The longest carbon chain starting from carbon of the amide group would be the parent chain. Hence, in fact parent chain has eight carbon as:

Correct IUPAC name would be N-ethyl-5-(1-oxoethyl) octanamide.

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