Ncert Exercises & Solutions

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:

$N a H + H_{2} O \to N a O H + H_{2}$

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

$C u S O_{4} + 5 H_{2} O \to C u S O_{4} . 5 H_{2} O$

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