Question

explain Lucas test with an example.​

Answer 1

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Lucas' reagent is a solution of anhydrous zinc chloride in concentrated hydrochloric acid. ... The reaction is a substitution in which the chloride replaces a hydroxyl group. A positive test is indicated by a change from clear and colourless to turbid, signalling formation of a chloroalkane.

Answer 2

Answer:

The Lucas test in alcohols in test to differentiate between primary, secondary and tertiary alcohols. it is based on difference in reactivity of the three class of alcohols with hydrogen halide via an sN1 reaction.