Question

Mesityl oxide is a common name of

• A. 3-Methyl cyclohexane carbaldehyde
• B. 4-Methyl pent-3-en-2-one
• C. 2,4-Dimethyl pentan-3-one
• D. 2-Methyl cyclohexanone

Answer 1

The correct option is B

4-Methyl pent-3-en-2-one

Explanation of correct answer with a diagram:

(B) 4-Methyl pent-3-en-2-one: The chemical, known as mesityl oxide," is classified as an unsaturated ketone, which indicates that both the alpha-carbon holding the ketone group and the beta-carbon will have double bonds.

1. Mesityl oxide has the chemical formula $C_6{H}_{10}O$ and the IUPAC name 4-methylpent-3-en-2-one.
2. Isobutyl methyl ketone, methyl isobutenyl ketone, and isopropylidene acetone are some alternative names for mesethyl oxide

Diagram:

Hence, option (B)Mesityl oxide is a common name 4-Methyl pent-3-en-2-one.