Methanol is produced by reduction of
Correct answer: A. Formaldehyde
- A. Formaldehyde
- B. Acetaldehyde
- C. Propanal
- D. Propanone
Explanation
Reducing an aldehyde adds hydrogen across the carbonyl group and gives a primary alcohol with the same number of carbon atoms, so the one carbon aldehyde formaldehyde gives the one carbon alcohol methanol. Acetaldehyde would give ethanol and propanal would give propan-1-ol. Propanone is a ketone and would give a secondary alcohol, propan-2-ol.
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About Nucleophilic Addition Reactions
Nucleophilic addition occurs at the polar carbonyl group of aldehydes and ketones, where a nucleophile attacks the electron-deficient carbon atom. Reactions with hydrogen cyanide, sodium bisulfite, alcohols and Grignard reagents are explained through tetrahedral intermediates, acid or base catalysis, and the different reactivity of aldehydes and ketones.
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