Question

how will you test the presence of the following nutrients
please give the answer.​

Answer 1

Answer:

Take a small quantity of the food to be tested. Grind the food into powder form by mashing it. Add ten drops of water and two drops of copper sulphate solution into it. You will observe the colour of the mixture into violet that indicates the presence of proteins in the food.

Answer 2

but where are the nutrients

you not mentioned the nutrients it in the question