Question

What is carbohydrate? How will you test presence of this in any food item

Answer 1

The main carbohydrates found in our food are in the form of starch and sugars. We can easily test if a food item contains starch. Take small quantity of the food items to be tested. Put 2-3 drops of iodine solution on it.

Answer 2

Answer:

any of a large group of organic compounds occurring in foods and living tissues and including sugars, starch, and cellulose. They contain hydrogen and oxygen in the same ratio as water (2:1) and typically can be broken down to release energy in the animal body.

Using a dropper add two drops of copper sulphate solution to the test tube. Add 10 drops of caustic soda solution and shake the test tube. Observe the colour of the mixture. Violet colour indicates the presence of proteins in the tested food item.

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