Question

Which colour is seen on the food particle to confirm this nutrient​

Answer 1

Answer:

When a few drops of a solution of copper sulphate and caustic soda are applied to a part of food, a violet colour shows the presence of proteins.

Explanation:

Test if a food item contains protein.

Take a small quantity of the food items to be tested.

Grind/mash/paste/powder the food item.

Put the food item into a test tube.

Add 10 drops of water and shake the test tube.

Using a dropper add two drops of copper sulphate solution to the test tube.

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Answer 2

Answer:

White ,

Explanation:

For calcium

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