Created by Danielle Thibeadeaux
over 10 years ago
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Question | Answer |
Benedict's reagent an ______ solution containing a _____ _____ complex ion. | Benedict's reagent an alkaline solution containing a cupric citrate complex ion. |
Tollens' solution _________ oxidize giving a positive test with _____ and _____. | Tollens' solution [Ag+(NH3)2OH-] oxidize giving a positive test with aldoses and ketoses. |
The tests are ________ even though aldoses and ketoses exist primarily as _____ ________. | The test are positive even though aldoses and ketoses exist primarily as cyclic hemiacetals. |
Benedict's solution is the color ______ from the _____. Once it oxidizes an aldose or ketose it becomes a ______ color of the precipitate ______. | Benedict's solution is the color blue from the Cu+2. Once it oxidizes an aldose or ketose it becomes a brick-red color of the precipitate CU2O. |
In alkaline solution ketoses are converted to _______ which are then oxidized by the ________ complexes. | In alkaline solution ketoses are converted to aldoses which are then oxidized by the cupric complexes. |
Sugars that give a positive test with ________ or ________ solutions are known as ________. | Sugars that give a positive test with Tollens' or Benedict's solutions are known as reducing sugars. |
All __________ that contain a ________ ______ give positive test. | All carbohydrates that contain a hemiacetal group give positive test. |
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