1. I am such a nutrient in food that does not require any chemical other than a paper to
identify.
2. My presence can be detected by using water, copper sulphate and caustic soda with
food.
3. I am made by twisting the fibres.
L.O. Conducts simple investigation to get the answer of the questions.
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Answer:
Identification of given statements -
1. Fats 2. Protein 3. Yarn
Fats are polymers of glycerol and fatty acid. They can be tested using paper, as they leave a translucent patch. The patch can not be removed on removal of food item.
Proteins are tested using Biuret reagent. Development of violet color is the sign of presence of protein.
Thread is made by twisting the fibres. Further twisting of thread will create yarn which can further be developed into cord or cable.
Explanation:
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