Question

why salt a pure substance and salt solution is mixture

Answer 1

examples of pure substances are iron,silver,gold etc. compounds are water ,sodium chloride etc.Thus, salt water is a mixture,with salt as the solute and water as the solvent.in fact salt water is a homogeneous mixture and can be termed as solution

Answer 2

Salt water is a mixture and not apure substance. We define pure substances as those that contain atoms or molecules of the same type. ... Thus, salt water is amixture, with salt as the solute and water as the solvent. In fact,salt water is a homogeneous mixture and can be termed as a solution.