Question

The incorrect IUPAC name is

• A. CH3–C–CH–CH3 O CH3-methyl-3-butanone
• B. CH3–CH–CHCH3 CH2–CH3–CH3 2, 3-dimethyl pentane
• C. CH3–C≡CCH(CH3)2 4-methyl-2-pentyne
• D. )CH3–CH–CH–CH3 Cl Br 2-bromo-3-chloro butane

Answer 1

The Correct Option is A

The correct option is(A):CH3–C–CH–CH3 O CH3-methyl-3-butanone. The given compound has the following structure: CH3–C–CH–CH3OCH3mIn this structure: The longest carbon chain contains four carbon atoms.There is a ketone functional group (C=O) on the third carbon atom in the chain.There is a methyl group (-CH3) attached to the second carbon atom in the chain.Based on these structural features, the IUPAC name "methyl-3-butanone" is correct. so the answer "CH3–C–CH–CH3 O CH3-methyl-3-butanone" is justified.