Which of the following structures has the IUPAC name 7-hydroxy-5-methylheptan-2-one?

Correct option is B

Correct Answer: B)

• IUPAC Name: 7-hydroxy-5-methylheptan-2-one

• The structure corresponds to the correct IUPAC name:

  • Hydroxy group (-OH) is at position 7.

  • Methyl group (-CH₃) is at position 5.

  • The carbonyl group (C=O) is present at position 2.

  • The main chain is a 7-carbon chain (heptane) with a methyl group and a hydroxy group as specified in the name.

• The numbering follows the IUPAC rules where the carbonyl group (C=O) gets the lowest possible number, hence it's at position 2.