Question

The correct IUPAC name of the given compound is :

(correct answer +2, wrong answer -0.5)

• A. $\text{2-Methyl-3-pentanone}$
• B. $\text{4-Methyl -3-pentanone}$
• C. $\text{2-Methyl-2-pentanone}$
• D. $\text{4-Methyl-2-pentanone}$

Answer 1

The correct option is A $\text{2-Methyl-3-pentanone}$

The functional group present in the compound is ketone, hence -one prefix is added. Total carbon atoms present in the compound is 5 hence pentane will be the parent name. On numbering methyl group will get 2nd position. Hence, the name of the compound is $\text{2-Methyl-3-pentanone}$.