Questions and Answers
Water which easily produces lather with soap is called ______
soft water
Water which does not produce lather with soap is called ______
hard water
Hardness of water is that characteristic which prevents the lathering of ______
soap
Temporary or Carbonate hardness is due to the presence of bicarbonates of Calcium or Magnesium and it can be removed by simple ______ of water
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Permanent or Non Carbonate hardness is caused by the presence of chlorides and sulphates or any other soluble calcium and magnesium ______
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Study Notes
Types of Water
- Water that easily produces lather with soap is called soft water.
- Water that does not produce lather with soap is called hard water.
Characteristics of Hard Water
- Hardness of water is the characteristic that prevents the lathering of soap.
- Hardness is caused by the presence of certain minerals, particularly calcium and magnesium.
Types of Hardness
- Temporary or Carbonate hardness is due to the presence of bicarbonates of Calcium or Magnesium.
- Temporary hardness can be removed by simple boiling of water.
- Permanent or Non-Carbonate hardness is caused by the presence of chlorides and sulphates or any other soluble calcium and magnesium salts.
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