Question

My presence can be detected by using water, copper sulphate and caustic soda with food.
I am such a nutrtient in food that does not require any chemical other than a paper to identify​

Answer 1

Answer:

s carbohydrates.

When drops of copper sulphate are applied to food, a blue-black colour shows the presence of starch (carbohydrates).

Test for Proteins

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.