Question

CH3CH=C(CH3) - CH3 IUPAC NAME​

Answer 1

The correct IUPAC name of the compound CH3CH=C(CH3)2 is 2-methyl-but-2-ene. The parent hydrocarbon contains 4C atoms and a double bond. Hence, it is but-2-ene. A methyl group is present at a second carbon atom.