Multiple choice

Which of the following matches is not correct?

  1. Baeyer’ reagent – dilute alkaline KMnO4

  2. Nesseler’s reagent – alkaline solution of K2HgI4

  3. Etard’s reagent – CrO2Cl2

  4. Barfoed’s reagent: Conc. HCl + anhydrous ZnCl2

  5. Fenton’s reagent: FeSO4 + H2O2

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Barfoed's reagent consists of a 0.33 molar solution of neutral copper acetate (Cu(CH3COO)2) in 1% acetic acid (CH3COOH) solution. Lucas' reagent is a solution of anhydrous zinc chloride (ZnCl2) in concentrated hydrochloric acid (HCl). Thus, this option is correct.