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What do you understand by the term softe...

What do you understand by the term softening of hard water?

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CHHAYA PUBLICATION-HYDROGEN-WARM UP EXERCISE
  1. Explain why lather is not formed when soap is used in hard water.

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  2. It is better to use detergent than soap in hard water - explain why.

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  3. What do you understand by the term softening of hard water?

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  4. What is calgon? Which ions are rendered ineffective by calgon thereby ...

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  5. Temporary hardness caused by Mg(HCO(3))(2) cannot be removed completel...

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  6. What are the inorganic cation exchangers which are known as permutits ...

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  7. What do you understand by deionised or demineralised water?

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  8. In the preparation of deionised water how do organic cation or anion e...

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  9. How can the exhausted inorganic and organic ionexchangers be regenerat...

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  10. Explain why the water obtained after passing hard water through cation...

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  11. A sugar solution prepared in distilled water is passed successively th...

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  12. Why is hard water not used for cooling purpose in industry?

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  13. The hardness of water of a tube well is 300 ppm. What do you mean by t...

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  14. Will the water obtained by passing hard water through anion exchange r...

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  15. A sample of water contains MgSO(4) and urea. How can they be eliminat...

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  16. How can hydrogen peroxide be prepared in the laboratory? What is the l...

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  17. Explain why in the laboratory preparation of H(2)O(2) : the reaction...

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  18. Explain why in the laboratory preparation of H(2)O(2) : dilute H(2)S...

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  19. Explain why in the laboratory preparation of H(2)O(2) : A thin paste...

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  20. Explain why in the laboratory preparation of H(2)O(2) : At the end o...

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