16 Questions
What color change would you expect when conducting the Molisch Test and observing the junction of two layers?
Violet
Which type of starch is derived from mature wheat grains?
Wheat Starch
What is the Barfoed's reagent used for?
Testing for disaccharides
Which test is used to identify the presence of starch with a deep-blue color indicating its presence?
Iodine Test
Which type of starch is obtained from tubers of potatoes?
Potato Starch
What does a pink color observed in the Ruthenium Test indicate?
Presence of mucilage
What reaction proceeds extremely slowly when disaccharides are used, even though disaccharides might be used?
Barfoed’s reagent
Which color change is observed in the Molisch Test that indicates the presence of carbohydrates?
Violet
What does the deep-blue color in the Lugol’s solution test indicate the presence of?
Starch
Which starch is derived from rice grains?
Rice Starch
What does the absence of a blue color indicate in the Enzyme Test?
Absence of enzymes
Which test involves observing a red precipitate after a few minutes for monosaccharides and after 3 minutes for disaccharides?
Barfoed’s reagent
Which color is observed when conducting the Ruthenium Test to indicate the presence of mucilage?
Pink
Which type of starch is obtained from mature wheat grains?
Wheat Starch
What is determined by observing a blue color in the Enzyme Test?
Presence of starch
What distinguishes the starch obtained from corn grains according to Lugol's solution test?
Deep-blue coloration
This quiz covers various tests for carbohydrates and derived products, including Fehling’s Test, Molisch Test, Osazone Formation, Seliwanoff’s Test, Bial’s Test, Keller-Killani Test, Benedict’s Test, Barfoed’s Test, and more. Test your knowledge on detecting reducing and nonreducing sugars in the laboratory setting.
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