WebFeb 22, 2012 · Best Answer. Copy. This is due to the reduction of the cupric (Cu2+) ions in Benedict's reagent to cuprous form (Cu1+) by reducing sugars, forming cuprous oxide … WebAn unknown carbohydrate gave a brick red precipitate when tested with Fehling’s reagent, turned red when reacted with Seliwanoff’s reagent, and quickly gave a red precipitate when reacted with Barfoed’s reagent. What conclusions can be made about this carbohydrate? Expert Solution Want to see the full answer? Check out a sample Q&A here

Brick red color in Benedict’s test indicates _______ …

WebBenedict’s test will detect on functional group of aldehyde and keto. As glucose has this functional group, the Benedict’s test shows positive results by changing the colour of Benedict’s reagent from blue colour to green then to brick red precipitate. Therefore this test is semi quantitative. WebApr 21, 2024 · Observation (Results) of Benedict’s Test. Figure: Observation (Results) of Benedict’s Test. Image Source: Chemistry Learner. Appearance of solution. The concentration of reducing sugar (g%) Interpretation. Brick red with heavy precipitate 2% or >2%. A large amount of reducing sugar is present. Brownish orange with red … all stars all unit

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WebFehling's and Benedict's solution contains cupric ions or Cu2+ ions. The Cu2+ ions are reduced to Cu+ ions by addition of electrons in the presence of reducing sugars such as … WebA reducing sugar gives a brick red precipitate with Benedicts reagent. In which answer do all the molecules give a (+) test: hydrolyzed starch, lactose, albumin glucose, ribose and … Webpreparation of Benedict's test Approximately 1 ml of sample is placed into a clean test tube. 2 ml (10 drops) of Benedict's reagent (CuSO4) is placed in the test tube. The solution is … all stars aligned