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Distinguish between Hard water and Soft water.

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Hard water:

  • Presence of magnesium and calcium in the form of bicarbonate, chloride and sulphate in water makes hard water.
  • Cleaning capacity of soap is rcduced when used in hard water.
  • When hard water is boiled deposits of insoluble carbonates of magnesium and calcium are obtained.

Soft water​​​​​​​:

  • Presence of soluble salts of calcium and magnesium in water makes it soft water. 
  • Cleaning capacity of soap is more when used in soft water. 
  • When soft water is boiled, there is no deposition of salts.

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