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Q.
A ketone has molar mass 86 . Which of the following cannot be $IUPAC$ name of this ketone?
Organic Chemistry – Some Basic Principles and Techniques
Solution:
All others (a), (b) and (c) are correct IUPAC names and have molar mass of 86. Although, (d) has molar mass 86, the name is incorrect as per IUPAC convention: