

In the given questions sets of test on exam fear there was a question that which of the following doesnt completely dissolve in water and for that options were sugar salt sand and none of the above. And answer was none of the above. So it means all dissolve in water. But if this be true then how can sand dissolve in water. Please give the correct answer
Sand does not dissolve in water at all. Sugar and salt dissolve in water till a point after that, they will not be dissolvable. Thats why sand, sugar and salt does not completely dissolve in water.
