Question

7. Study the steps to test the presence of proteins in a Food item. Write the correct sequence in
the table below.
i. Take a small quantity of the food item in a test tube
ii.
Make a paste or powder of food to be tested.
Add 10 drop of water to it and shake it.
iv. Add 10 drops of caustic soda solution into the test tube and shake well.
Add 2 drops of copper sulphate solution to it.
1.
V.
IV.
V.
If the food contains protein, what will be the
colour of test tube content after few minutes?​

Answer 1

Answer:

1. Take a small quantity of the food items to be tested.
2. Grind/mash/paste/powder the food item.
3. Put the food item into a test tube.
4. Add 10 drops of water and shake the test tube.
5. Using a dropper add two drops of copper sulphate solution to the test tube

Explanation: