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What is calgon? Which ions are rendered ...

What is calgon? Which ions are rendered ineffective by calgon thereby eliminating the hardness of water?

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What is calgon? Water is it used?

What causes the temporary and permanent hardness of water?

What is EDTA, a compound used to determine the hardness of water?

What is the unit for expressing the degree of hardness of water?

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Explain how calgon is used to remove permanent hardness.

CHHAYA PUBLICATION-HYDROGEN-WARM UP EXERCISE
  1. It is better to use detergent than soap in hard water - explain why.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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  20. Explain why in the laboratory preparation of H(2)O(2) : HCL or HNO(3...

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