MHT CET 202625 AprilMorning Shift

Exam: MHT CET
Year: 2026
Date: 25 April
Shift: Morning Shift
Subject: Chemistry
Chapter: Alcohols Phenols and Ethers

MHT CET 2026 · 25 April · Morning Shift · Chemistry · Alcohols Phenols and Ethers

Identify Lucas reagent from following.

Options

Aconc. $\text{HCl}$ + anhydrous $\text{AlCl}_3$
Bconc. $\text{HCl}$ + anhydrous $\text{ZnCl}_2$
Cconc. $\text{HCl}$ + dil. $\text{H}_2\text{SO}_4$
Dconc. $\text{HCl}$ + conc. $\text{H}_2\text{SO}_4$

Correct answer

B. conc. $\text{HCl}$ + anhydrous $\text{ZnCl}_2$

Step-by-step solution

Lucas reagent is a mixture of concentrated hydrochloric acid (

\text{HCl}

) and anhydrous zinc chloride (

\text{ZnCl}_2

).

It is used in organic chemistry to differentiate between primary, secondary, and tertiary alcohols based on their reactivity and the time taken to form turbidity.

Answer: conc.

\text{HCl}

+ anhydrous

\text{ZnCl}_2

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