Question

Food items Gives blue-black colour when iodine solution is added. Gives purple colour when two drops of copper sulphate solution and 10 drops of caustic soda is added to it. Oil stains are seen when rubbed on paper Raw potato Yes Dried coconut Peanuts Milk Gram flour Boiled rice​

Answer 1

Answer:

it is true

Explanation:

1. because it iodine if added to the raw potato or boiled rice so if its colour blue black so it has protein in it.
2. if a milk is is uat testing you are testing so so you need to take a test tube.
3. if you have a solid material to test for protein so you need to grind or mashed and then you need to test for protein.