You have tested two compounds with benedicts solution; both gave a red precipita

Question

You have tested two compounds with benedicts solution; both gave a red precipitate in the blue solution. When the Molisch test was performed on both of the compounds, the first one showed A purple ring at the interface, while the second one showed no reaction. To what class of compounds does each compound belong? Explain? You have tested two compounds with benedicts solution; both gave a red precipitate in the blue solution. When the Molisch test was performed on both of the compounds, the first one showed A purple ring at the interface, while the second one showed no reaction. To what class of compounds does each compound belong? Explain?

Explanation / Answer

Molisch test is a confirmatory test for whether a carbohydrate is present or not,
So by the information given it is confirmed that the first compound is a carbohydrate where as the second one is not a carbohydrate
Benedicts solution is tested positive for aldehydes and ketones, if a free aldehyde and ketone is present in a carbohydrate, it is called as a reducing sugar, which gives benedicts test positive. So by the given information it is evident that the first compound is a reducing sugar(carbohydrate), where as the second compound is just a carbonyl compund

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