Question

difference between hydration and solution

Answer 1

Hydration is simply the addition of water molecule to the compound ,when no decomposition of compound takes place.

A solution is a homogeneous mixture composed of two or more substances. In such a mixture, a solute is a substance dissolved in another substance, known as a solvent
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Answer 2

Hydration is a process where any substance is chemically combined with water molecules.
Solution is a liquid mixture , in which the solute (the minor component) is dissolved in solvent (the major component)