Which of the following is the correct IUPAC name ?

Options

A. 3-ethyl-4, 4-dimethylheptane
B. 4,4-dimethyl-3-ethylheptane
C. 5-ethyl-4, 4-dimethylheptane
D. 4,4-bis(methyl)-3-ethylheptane

Answer

A

Explanation

The structure :
`CH_(3)-CH_(2) - CH_(2) - overset(CH_(3))overset(|)underset(CH_(3))underset(|)C- underset(C_(2)H_(5))underset(|)(CH) - CH_(2) -CH_(3)`
While writing IUPAC name, alkyl groups are written in alphabetical priority, thus lower locant 3 is assigned to ethyl.