Liam will use Benedict's solution to detect the presence of sugar in a diet lemonade. He needs to place a few drops of Benedict's solution in a test tube along with the diet lemonade. He must heat the mixture for a few minutes. Heating will produce a reaction if glucose, which is classed as a reducing sugar, is present in the diet lemonade.Heating should be continued until the mixture produce red-brown precipitate. Glucose will give a red-brown precipitate with Benedict's solution.
Diet Lemonade doesn't have any sugar. Liam will not find any reaction with the test that he will do because only the presence of glucose will give the red-brown precipitate. If glucose is not present, the mixture when heated will not produce any reaction.
