Describe an activity to test the presence of sugar in a given food item.

Open in App

Solution

Presence of glucose or sugar can be tested in a food through Benedict's test. Benedict solution is blue in colour. Dissolve the food item in water and take the solution in a test tube and add a few drops of benedict's solution in it. Heat it for a minute. A red precipitate will be formed at the bottom showing the presence of sugar in the given food item.

Suggest Corrections

Similar questions

Q. How can you test presence of proteins in a given food item ?

How do you test for the presence of starch in a food item? [5 MARKS]

Q. Describe an activity to show the test for solubility of following substances.
salt, sugar, sand, sawdust, glucose

In an experiment, Radha took small amounts of an unknown food item in a test tube. Then, she added two drops of copper sulphate solution in the test tube along with a few drops of caustic soda solution. After a few minutes, the colour of the food item changed to violet.

In the given experiment, the change in colour of the food item to violet indicates the presence of

Sudha took a small amount of an unknown food item in a test tube. Then, she added a few drops of iodine to it. The colour of the unknown food item changes to blue-black.

The change in colour of the food item to blue-black indicates the presence of

Join BYJU'S Learning Program