Question

Which is required for the removal of ca(hco3)2 in lime soda process:?

Answer 1

⭐⭐⭐⭐⭐ ANSWER ⭐⭐⭐⭐⭐

✔ WHAT CAUSES HARDNESS OF WATER?

➡ Hardness of water is due to the presence of salts of calcium and magnesium in it.

✔ HOW CAN TEMPORARY HARDNESS BE REMOVED?

➡ It can be removed by boiling.

✔ REMOVAL OF Ca(HCO3)2 :

➡ The soluble Calcium bicarbonate present in the water decomposes to form insoluble Calcium Carbonate along with Carbon dioxide (CO2) and Water (H2O).

➡ The insoluble Calcium Carbonate thus formed are removed from boiled water by filtration, leaving behind soft water which is free from salts of calcium.

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So, Boiling (Heat) is required for the removal of Ca(HCO3)2.
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⭐⭐⭐ ALWAYS BE BRAINLY ⭐⭐⭐