Question

Which of the following is/are true for 3-methylbutanone?

• A. This compound is an isomer of pent-4-en-1-ol
• B. It may be prepared by acidic $H{g}^{2+}$ catalyzed hydration of 3-methylbutyne
• C. It may prepared by $Cr{O}_3$ oxidation of 2-methylbutan-2-ol
• D. It can not give positive iodoform test

Answer 1

Answer: (A), (B)

The correct options are
A This compound is an isomer of pent-4-en-1-ol
B It may be prepared by acidic $H{g}^{2+}$ catalyzed hydration of 3-methylbutyne



2-methylbutan-2-ol is $3^o$ alcohol which can not be oxidised by $Cr{O}_3$.

3-methylbutan-2-one is methyl ketone, which gives positve iodoform test.