9.31 What is the difference between the terms ‘hydrolysis’ and ‘hydration’ ?


Hydrolysis is defined as a chemical reaction in which hydrogen and hydroxide ions (H+ and OH– ions) of water molecule react with a compound to form products. For example: 

NaH + H2O        NaOH + H2

Hydration is defined as the addition of one or more water molecules to ions or molecules to form hydrated compounds. For example:

CuSO4 + 5H2O       CuSO4 . 5H2O