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The method used to remove temporary hard...

The method used to remove temporary hardness of water is:

A

Calgon.s method

B

Clark.s method

C

Ion-exchange method

D

Synthetic resins method

Text Solution

Verified by Experts

The correct Answer is:
B
To remove temporary hardness of water, Clark.s reaction used, in which bicarbonates of calcium and magnesium reacted with slaked lime `Ca(OH)_(2)`.
`Ca(HCO_(3))_(2)+Ca(OH)_(2)to2CaCO_(3)darr+2H_(2)O`
`Mg(HCO_(3))_(2)+2Ca(OH)_(2)to2CaCO_(3)darrMg(OH)_(2)darr+2H_(2)O`
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PHYSICS WALLAH-HYDROGEN-LEVEL-2
  1. The method used to remove temporary hardness of water is:

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  2. Hydrogen molecule differs from chlorine molecule in the following resp...

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  3. Which one of the following properties shows that hydrogen resembles al...

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  4. Dihydrogen has :

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  5. The first ionization energy for in kJ "mol"^(-1) H, Li, F. Na has one ...

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  6. Reaction between following pairs will produce hydrogen except :

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  7. Hydrogen from HCl can be prepared by :

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  8. Nascent hydrogen consists of

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  9. Hydrogen combines with other elements by

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  10. Hydrogen accepts an electron to form inert gas configuration. In this ...

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  11. In all its properties, hydrogen resembles :

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  12. The oxidation states exhibited by hydrogen in its compounds are:

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  13. Which of the following groups represents the hydrides?

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  14. In which of the following compounds does hydrogen have an oxidation st...

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  15. Hydrogen acts as an oxidising agent in the reaction with :

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  16. Which of the following represents a pair of covalent hydrides?

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  17. Which of the following metals adsorbs hydrogen ?

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  18. The temporary hardness of water is due to the presence of

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  19. Temporary hardness may be removed from water adding.

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  20. Heavy water is used in nuclear reactors as:

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  21. One of the following is an incorrect statement, point it out.

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