Question

principles used in separating Salt from marble powder
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Answer 1

Answer:

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Answer 2

Explanation:

For option A, the iron filling can be removed by using a magnet. an iron filling will be attracted by a magnet while water and iodine will not.

For option B, marbles can be separated by hand. Now add water salt will dissolve while sand will not. then separate the saltwater and sand.

For option C, winnowing can be used to separate chaff and grains.for chalk powder we can use filtration.

For option D, stone can be removed by handpicking, now water and salt can be separated by boiling the water. so water will evaporate leaving salt behind.