Question

Which nomenclature is not according to IUPAC system
A. `Br-CH_(2)-CH=CH_(2)`, 1-Bromo-prop-2-ene
B. `{:(" "CH_(3)),(" |"),(CH_(3)-CH_(2)-C-CH_(2)-CHCH_(3)","),(" |"" |"),(" "Br" "CH_(3)),("4 - Bromo, 2, 4-di-methylhexane"):}`
C.
D. `{:(CH_(3)-C-CH_(2)-CH_(2)-CH_(2)COOH),(" ||"),(" "O),("5-Oxohexanoic acid"):}`

Answer 1

Correct Answer - A
`Br-underset(3)(C)H_(2)-underset(2)(C)H = underset(1)(C)H_(2)`.
the correct name is 3-Bromoprop-1-ene.