Engineering
Chemistry
Test of alcohol
Question
Statement-2 : 3° alcohol give white turbidity immediately on reaction with Luca's reagent by SN1 mechansim.
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Solution
Statement-1 is false. Lucas reagent (conc. HCl + ZnCl₂) is used to distinguish 1°, 2°, and 3° alcohols. 3° alcohols react fastest (immediate turbidity) via SN1 mechanism due to stable carbocation formation. 1° alcohols react very slowly (no turbidity at room temp) via SN2. Statement-2 is true as it correctly describes the reaction of 3° alcohols.
Final Answer: Statement-1 is false, statement-2 is true.