Question

how is slaked lime obtain from quick lime ?

Answer 1

Making slaked lime. Calcium oxidereacts with water to form calcium hydroxide, also called slaked lime. A lot of heat is produced in the reaction, which may even cause the water to boil.

Answer 2

If limestone is heated strongly, it breaks down to form calcium oxide and carbon dioxide. Calcium oxide is also called quicklime. It is yellow when hot, but white when cold.

Here are the equations for this reaction:

calcium carbonate  calcium oxide + carbon dioxide

CaCO3 CaO + CO2

This is a thermal decomposition reaction.