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Qualitative Analysis of Carbohydrates Carbohydrates undergo dehydration by Conc. H2SO4 to form furfural (furfuraldehyde) or its derivative. The furfurals further react with a-naphthol present in the Molisch's reagent to form a red-violet (purple) coloured product that appears as a purple ring at the interface between the acid and the test layers. Select the test: Molisch's test A Molisch' Reagent Conc. H2SO4 Reset Glucose Lactose Sucrose Starch

Qualitative Analysis of Carbohydrates Carbohydrates undergo dehydration by Conc. H2SO4 to form furfural (furfuraldehyde) or its derivative. The furfurals further react with a-naphthol present in the Molisch's reagent to form a red-violet (purple) coloured product that appears as a purple ring at the interface between the acid and the test layers. Select the test: Molisch's test A Molisch' Reagent Conc. H2SO4 Reset Glucose Lactose Sucrose Starch

Biochemistry
Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
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Qualitative Analysis of Carbohydrates Carbohydrates undergo dehydration by Conc. H2SO4 to form furfural (furfuraldehyde) or its derivative. The furfurals further react with a-naphthol present in the Molisch's reagent to form a red-violet (purple) coloured product that appears as a purple ring at the interface between the acid and the test layers. Select the test: Molisch's test Molisch' Reagent Conc. H2SO4 Reset Glucose Lactose Sucrose Starch
Transcribed Image Text:Qualitative Analysis of Carbohydrates Carbohydrates undergo dehydration by Conc. H2SO4 to form furfural (furfuraldehyde) or its derivative. The furfurals further react with a-naphthol present in the Molisch's reagent to form a red-violet (purple) coloured product that appears as a purple ring at the interface between the acid and the test layers. Select the test: Molisch's test Molisch' Reagent Conc. H2SO4 Reset Glucose Lactose Sucrose Starch
Test Added reagent/s Samples Observation and interpretation Molisch Test Conc. H2SO4 & Glucose Molisch's reagent Conc. H2SO4 & Lactose Molisch's reagent Conc. H2SO4 & Sucrose Molisch's reagent Conc. H2SO4 & Starch Molisch's reagent
Transcribed Image Text:Test Added reagent/s Samples Observation and interpretation Molisch Test Conc. H2SO4 & Glucose Molisch's reagent Conc. H2SO4 & Lactose Molisch's reagent Conc. H2SO4 & Sucrose Molisch's reagent Conc. H2SO4 & Starch Molisch's reagent
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