A ketone has molar mass 86 . Which of the following cannot be IUPAC name of this ketone?

Question

A ketone has molar mass 86 . Which of the following cannot be IUPAC name of this ketone? (A) 2-Pentanone (B) 3-Pentanone (C) 3-Methyl butanone (D) 2-Methyl butanone

Tardigrade Admin · Accepted Answer

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: <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/chemistry/cd2aad4b8a7691fec7312f003c1c0a51-.png" />

Q. A ketone has molar mass 86 . Which of the following cannot be IUPAC name of this ketone?

2-Pentanone

3-Pentanone

3-Methyl butanone

2-Methyl butanone

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:

Q. A ketone has molar mass 86 . Which of the following cannot be $I U P A C$ name of this ketone?