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Water softening by Clarke's process uses...

Water softening by Clarke's process uses which of the following

A

Calcium bicarbonate

B

Sodium bicarbonate

C

Potash alum

D

Calcium hydroxide

Text Solution

Verified by Experts

The correct Answer is:
D
In Clarke.s process, slaked lime is added to remove the temporary hardness of water and insoluble calcium carbonate precipitates out. `Ca (OH)_(2), + Ca(HCO_(3))_(2), rarr 2CaCO_(3), + 2H_(3),O` (slaked lime).
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Knowledge Check

  • In the calgon process of softening of water, which of the following is used

    A
    sodium polymetaphosphate
    B
    Hydrated sodium aluminium silicate
    C
    Caton exchange resins
    D
    Anion exchange resins

  • Temporary hardness of water can be removed by which of the following processes?

    A
    Lime-soda process
    B
    Boiling
    C
    Clark's process
    D
    Ion exchange method

  • When sodium is added in scanty water, it catches fire. In this process which one of the following burns?

    A
    Na
    B
    `H_2O`
    C
    `CO`
    D
    `H_2`

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    During the concentration of sulphide ores by froth floatation process, the separation of sphalerite and galena is achieved by which of the following substances used as depressant?

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