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Class 11ChemistryHydrogenWater or hydride of oxygen
Medium

The degree of hardness of water is usually expressed in terms of which of the following?

  • A
    Grams per liter of $CaCO_3$ and $MgCO_3$ actually present
  • B
    Parts per million by weight of $CaCO_3$ whether actually present or not
  • C
    Parts per million by weight of $MgSO_4$
  • D
    Parts per million of $CaCO_3$ actually present in water
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Class 11 Questions

Class 11

Chemistry Questions

Chapter

Hydrogen

Subtopic

Water or hydride of oxygen

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