Distinguish between alkaline and non alkaline hardness?
|TEMPORARY OR ALKALINE HARDNESS||PERMANENET OR NON-ALKALINE HARDNESS|
|1. Caused by the process of dissolved
bicarbonates of calcium, magnesium
and other heavy metals and the
carbonates of iron. salts responsible for
temporary hardness are ca( Hco3)2'
|1.lt is due to presence of dissolved chlorides and sulphates of calcium, magnesium, iron and other heavy metals.|
|2. Temporary Hardness can be removed by boiling water.||2.Permanent Hardness cannot be removed by boiling the water.|
|3. Temporary hardness is called as carbonates or alkaline hardness.||3.!t is also known as non-carbonates or non-alkaline hardness.|
Mg(HCO3)2 → Mg(OH)2 +2CO2.
4.Can be removed by using chemical and not by boiling e.g. Lime soda method.
CaCI2 +Na2CO3 → CaCO3 +2NaCI.
Concept: Hardness of Water
Is there an error in this question or solution?