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Describe calgon process used for softeni...

Describe calgon process used for softening of hard water.

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ICSE-HYDROGEN-SHORT ANSWER TYPE QUESTIONS
  1. What do you understand by softening of hard water? How is the water ha...

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  2. Describe any two methods that may be used to remove permanent hardness...

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  3. Describe calgon process used for softening of hard water.

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  4. Describe the permutit process used for water softening.

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  5. What is deionised water and how is it prepared ?

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  6. Discuss the principle and method of softening of hard water by synthet...

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  7. What is heavy water and how is it prepared?

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  8. What happens when heavy water is treated with Na

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  9. What happens when heavy water reacts with CaO

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  10. What happens when heavy water reacts with P(4)O(10)?

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  11. What happens when heavy water is treated with Al(4)C(3)

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  12. What happens when heavy water is treated with Ca(3)P(2)

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  13. What is deuterolysis? Give two examples.

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  14. What do you understand by the exchange reactions of heavy water ? Give...

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  15. Give a brief account of the biological and physiological effects of he...

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  16. Mention some important uses of heavy water.

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  17. Explain, why water has high boiling and melting points as compared to ...

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  18. Give one reaction each to show that water can act as (i) an acid, ...

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  19. Give one reaction each to show that water can act as a base, .

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  20. Give one reaction each to show that water can act as (i) an acid, ...

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