Ketones are generally resistant to oxidation. But they can be oxidized by strong oxidizing agent such as (K2Cr2O7 + conc. H2SO4). On oxidation of 2-pentanone, which of the following products are possible?
Correct answer: B. CH3-CH2-COOH and CH3COOH
- A. CH3CH2COOH only
- B. CH3-CH2-COOH and CH3COOH
- C. CH3COOH only
- D. CH3COOH and HCOOH
Explanation
Option B is correct. Pent-2-one is a unsymmetrical carbonyl compound, so upon being oxidized it will give us a mixture of products such as CH3CH2COOH and CH3COOH. The carbon atom with the least hydrogen , next to the c=o is oxidized and the carbonyl group stays with the smaller alkyl group.
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About Aldehydes and Ketones
Aldehydes and ketones contain the polar carbonyl group, but aldehydes are generally more readily oxidised and more reactive than ketones. Coverage includes preparation by oxidation or reduction routes, nucleophilic addition of reagents such as hydrogen cyanide and bisulfite, and tests that distinguish aldehydes from ketones.
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