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Q.

Which of the following can be distinguished by Lucas test?

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a

Ethanol and ethylene glycol

b

o - and p - cresol

c

propan-1-ol and ethanol

d

Butan-1-ol and 2-methylprpoan-2-ol

answer is D.

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Detailed Solution

CH3-CH2-CH2-CH2-OHButan-1-ol(1°alcohol)(ZnCl2-HCl)CH3CH2CH2-CH2-Cl(turbidity appears immedialty)

Lucas test is used to differentiate and categorize primary, secondary and tertiary alcohols using a solution of anhydrous zinc chloride in concentrated hydrochloric acid

 

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