Chemistry · Alcohols: Identification of primary, secondary and tertiary alcohols, mechanism of dehydration

By the reduction of carbonyl compounds the alcohol not obtained is:

By the reduction of carbonyl compounds the alcohol not obtained is:

  • A. primary alcohol
  • B. secondary alcohol
  • C. tertiary alcohol
  • D. all the above

Step-by-step solution

Reduction of aldehydes yields primary alcohols, reduction of ketones yields secondary alcohols. Tertiary alcohols cannot be obtained by direct reduction of a carbonyl group because the carbonyl carbon is bonded to at most two other carbon atoms, whereas in tertiary alcohols the hydroxyl carbon is bonded to three carbon atoms.
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