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The principal cause of hardness of water...

The principal cause of hardness of water is the presence of_____ and____ions.

Text Solution

Verified by Experts

The correct Answer is:
`Ca^(2+),Mg^(2+)`
`Ca^(2+),Mg^(2+)`
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Knowledge Check

  • Hardness of water is due to the presence of

    A
    `CaCl_(2)`
    B
    `Mg" "SO_(4)`
    C
    `Ca(HCO_(3))_(2)`
    D
    All of these

  • Hardness of water is due to the presence of

    A
    `CaCl_(2)`
    B
    `MgSO_(2)`
    C
    `Ca(HCO_(3))_(2)`
    D
    All of these

  • Permanent hardness of water is due the presence of

    A
    hydrogencarbonates of sodium and potassium
    B
    sulphates of magnesium and calcium
    C
    carbonates of sodium and magnesium
    D
    bicarbonates of magnesium and calcium