Which one of the following reactants will be required to form straight chain alcohol by using Grignard reagent________________?
Correct answer: D. both A & C
- A. formaldehyde
- B. ketone
- C. ethylene epoxide
- D. both A & C
Explanation
Formaldehyde reacts with a Grignard reagent to give a primary alcohol after hydrolysis, and ethylene oxide also gives a primary alcohol because epoxide opening leaves the hydroxyl group at a terminal carbon. Thus both reactants can produce straight-chain primary alcohols. Students may select only formaldehyde because it is the standard reagent taught for primary alcohol formation.
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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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