take a small quanty of the food item in a test tube
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what is ur question it is not a question I think this is an activity!!!
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Take a small quantity of the food item in a test tube, add 10 drops of water to it and shake it. (ii) Make a paste or powder of food to be tested. (iii) Add 10 drops of caustic soda solution to the test tube and shake well. (iv) Add 2 drops of copper sulphate solution to it.
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