The distinction test for primary secondary and tertiary alcohol required to react each of them is_________________?
Correct answer: D. Cone. HCI and anhydrous ZnCl2Education
- A. Cone. HCI and anhydrous SOCl2
- B. Cone. HCI and anhydrous CaCl2
- C. Cone. HCI and anhydrous PCl2
- D. Cone. HCI and anhydrous ZnCl2Education
Explanation
The Lucas test uses concentrated HCl and anhydrous ZnCl2, which converts alcohols into insoluble alkyl chlorides at different rates: tertiary alcohols react immediately, secondary alcohols more slowly and primary alcohols only on heating. The likely alternative is concentrated HCl with SOCl2, but thionyl chloride is a chlorinating reagent, not the standard reagent for distinguishing the three classes.
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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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