Question

Which of the correct IUPAC names of the following compound ?
`H_3C-CH_2-CH_2-overset(HC(CH_3)_2)overset|"CH"-undersetunderset(H_3C-CH-CH_2CH_3)|"CH"-CH_2-CH_2-CH_2-CH_2-CH_3`
A. 5-Butyl-4-isopropyldecane
B. 5-Ethyl-4-propyldecane
C. 5-sec-Butyl-4-isopropyldecane
D. 4-(1-methylethyl)-5-(1-methylpropyl) decane

Answer 1

Correct Answer - C::D
Although IUPAC name for sec-butyl and isopropyl groups are 1-methylpropyl and 1-methylethyl respectively yet both these names also recommended for IUPAC nomenclature .