Question 23

Q23Assertion & reason

Explain why rate of reaction of Lucas reagent with three classes of alcohols different? Give chemical equations wherever required. (3)

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The reaction of alochol with Lucas reagent proceeds through carbocation formation. More stable is the carbocation, faster is the reaction. Carbocation formed by 1° alochol is least stable hence reaction is slow. Distribution of marks • Reaction (½ ×3 = 1½ mark) • Reason (1½ mark)