LiAlH4 converts Acetaldehyde into ___________?
Correct answer: C. Ethyl alcohol
- A. Acetic acid
- B. Methane
- C. Ethyl alcohol
- D. Methyl alcohol
Explanation
LiAlH4 reduces an aldehyde to a primary alcohol, so acetaldehyde, CH3CHO, becomes ethanol, CH3CH2OH, also called ethyl alcohol. The aldehyde carbonyl group is converted to a -CH2OH group without removing a carbon atom. The likely mistake is methyl alcohol, which would incorrectly reduce the two-carbon compound to a one-carbon product.
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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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