I. True or False. Write the word “reducing” if the statement is correct, otherwise write “non-reducing”. ____________1] Mutarotation affects the reducing property of carbohydrates. ____________2] Anthrone test can be use to test for the helical configuration of a polysaccharide. ____________3] Upon treatment with phenylhydrazine reagent & hydrolysis, maltose gives glucuronic acid and glucosazone. ____________4] Xylose gives a positive result with Molisch’s, Seliwanoff’s, & Bial’s-Orcinol tests. ____________5] Aniline-acid oxalate can be use as a mobile phase for the development of the chromatogram. ____________6] Ethanol (95%) & 10% TCA are used to precipitate glycogen from the solution. ____________7] Salivary amylase can be use to hydrolyze 1,4 glycosidic bonds of cellulose. ____________8] Lobry de Bruyn-van Ekenstein Transformation take place when a sugar is treated with a strongly basic reagent. ____________9] Ribulose yields 5-hydroxymethylfurfural upon treatment with strong acid. ___________10] Galactose gives a positive result with Benedict’s test faster than galactose due to the acidity of the reagent used.
I. True or False. Write the word “reducing” if the statement is correct, otherwise write “non-reducing”.
____________1] Mutarotation affects the reducing property of carbohydrates.
____________2] Anthrone test can be use to test for the helical configuration of a polysaccharide.
____________3] Upon treatment with phenylhydrazine reagent & hydrolysis, maltose gives glucuronic acid and glucosazone. ____________4] Xylose gives a positive result with Molisch’s, Seliwanoff’s, & Bial’s-Orcinol tests.
____________5] Aniline-acid oxalate can be use as a mobile phase for the development of the chromatogram.
____________6] Ethanol (95%) & 10% TCA are used to precipitate glycogen from the solution.
____________7] Salivary amylase can be use to hydrolyze 1,4 glycosidic bonds of cellulose.
____________8] Lobry de Bruyn-van Ekenstein Transformation take place when a sugar is treated with a strongly basic reagent. ____________9] Ribulose yields 5-hydroxymethylfurfural upon treatment with strong acid.
___________10] Galactose gives a positive result with Benedict’s test faster than galactose due to the acidity of the reagent used.
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