A positive test results in the formation of a blue-green solution from the brown-red color of chromic acid. The chromic acid test for primary and secondary alcohols exploits the resistance of tertiary alcohols to oxidation. Chromic Acid Test For Alcohols Youtube Used to distinguish between water-soluble primary secondary and tertiary alcohols with white precipitate. . Shows positive test for. How to perform the test. Anhydrous Zinc Chloride in concentrated. Chromic acid H 2 CrO 4 is a strong acid and a reagent for oxidizing alcohols to ketones and carboxylic acids. Three drops of the compound to be tested are mixed with 5. Place slides in 40 ml 1. Chromic Acid Test for Alcohols and Aldehydes. This video provides a demonstration in showing alcohols and aldehydes oxidizes under this test to eventually a carboxylic acid under this test. Materials and Methods Materials 1. Terms in this set 19