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1)The test is done for protein.
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.
2)people in old days simply draped the clothes because there was no concept of drapings which is present today
3)x-ray is useful because it helps to see the bones in the human body.If there is any fracture in the human body it can be detected by an x- ray.
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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.
2)people in old days simply draped the clothes because there was no concept of drapings which is present today
3)x-ray is useful because it helps to see the bones in the human body.If there is any fracture in the human body it can be detected by an x- ray.
Please mark me a brainliest
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