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Types of Hardness of Water MCQ App Download & e-Book PDF - 71

MCQ:

Permanent hardness of water is caused due to the presence of dissolved

  1. calcium hydrogen carbonates
  2. magnesium hydrogen carbonates
  3. chlorides of magnesium
  4. Sulphates of magnesium

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Types of Hardness of Water App (Android & iOS)

Types of Hardness of Water App (Android & iOS)

10th Grade Chemistry App (Android & iOS)

10th Grade Chemistry App (iOS & Android)

9th Grade Chemistry App (Android & iOS)

9th Grade Chemistry App (Android & iOS)

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