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The method used to remove temporary hard...

The method used to remove temporary hardness of water is

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### Step-by-Step Solution: 1. **Understanding Temporary Hardness**: Temporary hardness of water is primarily caused by the presence of dissolved bicarbonate minerals, mainly calcium bicarbonate (Ca(HCO₃)₂) and magnesium bicarbonate (Mg(HCO₃)₂). This type of hardness can be removed by boiling the water. 2. **Clarke's Method**: The method specifically used to remove temporary hardness is known as Clarke's method. In this method, limewater (which is a solution of calcium hydroxide, Ca(OH)₂) is added to the hard water. 3. **Chemical Reaction**: When limewater is added to the hard water, it reacts with the bicarbonate ions present. The reaction can be summarized as follows: - Ca(OH)₂ + Ca(HCO₃)₂ → 2CaCO₃ (precipitate) + 2H₂O ...
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The temporary hardness of water is due to :

(a) Write your observation, if you dip a red litmus paper in soap solution. (b) Suggest one method to remove the temporary hardness of water.

Knowledge Check

  • Temporary hardness of water is due to

    A
    presence of `Ca(HCO_3)_2`
    B
    presence of `CaCl_2`
    C
    Both (1) and (2)
    D
    None of these

  • Temporary hardness is

    A
    200 ppm
    B
    100 ppm
    C
    50 ppm
    D
    25 ppm

  • The temporary hardness of water is due to :

    A
    `CaCl_(2)`
    B
    `Ca(HCO_(3))_(2)`
    C
    NaCl
    D
    `Na_(2)SO_(4)`

    • Similar Questions

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    Name the compound used in Clark’s method to remove temporary hardness of water.

    Why temporary hardness of water is called so?

    Which process is used to remove only temporary hardness of water.

    Temporary hardness in water is removed by

    Only temporary hardness of water is removed by

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