Question

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

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

Answer 1

The correct option is C tertiary alcohol

Aldehyde $\stackrel{\text{Reduction}}{\to }{1}^o$ alcohol
Ketone $\stackrel{\text{Reduction}}{\to }{2}^o$ alcohol
$\therefore 3^o$ alcohol can't be prepared by reduction of carbonyl compounds.