Ketones are prepared by the oxidation of:
Correct answer: B. Secondary alcohol
- A. Primary alcohol
- B. Secondary alcohol
- C. Tertiary alcohol
- D. All of the above
Explanation
Ketones are prepared by the oxidation of secondary alcohols. When a secondary alcohol is oxidized, it loses hydrogen atoms and forms a ketone. Primary alcohols, on the other hand, are oxidized to form aldehydes, while tertiary alcohols cannot be oxidized to form ketones or aldehydes. So, it's the secondary alcohols that are used to prepare ketones.
This question appeared on the KMU Centralized Admission Test 2020 paper, which you can sit online with every answer explained.
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About Alcohols
Alcohols contain a hydroxyl group attached to a saturated carbon atom and are classified as primary, secondary or tertiary. Their nomenclature, hydrogen bonding, acidity, oxidation, dehydration, reaction with sodium and conversion to haloalkanes are covered, along with the distinction between alcohols and phenols, where the hydroxyl group is attached directly to an aromatic ring.
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