Question

The IUPAC name of the given compound is

• A. 5,5-diethyl-2-methylheptane
• B. 5-ethyl-2-methylheptane
• C. 3-ethyl-6-methylheptane
• D. 2-methyl-6-ethylheptane

Answer 1

The correct option is B 5-ethyl-2-methylheptane

• The word root here is hept as there are 7 carbons in the parent chain of the compound.
• The numbering here starts from right to left, according to lowest sum rule.
• There are two substituent groups, ethyl group and methyl group at the fifth and second carbons of the compound respectively.
• Hence, the IUPAC name of the compound is 5-ethyl-2-methylheptane.