On reduction with LiAlH4 ,Ketone gives__________?
Correct answer: B. Secondary Alcohol
- A. Primary Alcohol
- B. Secondary Alcohol
- C. Tertiary alcohol
- D. None of These
Explanation
LiAlH4 reduces a ketone's carbonyl group to an -OH group while retaining both carbon groups attached to that carbon, producing a secondary alcohol. For example, propanone gives propan-2-ol. The common error is primary alcohol, which is formed when an aldehyde is reduced rather than a ketone.
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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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