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Discuss the principle and method of soft...

Discuss the principle and method of softening of hard water by synthetic ion- exchange resins.

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ICSE-HYDROGEN-NCERT TEXT-BOOK EXERCISE (With Hints and Solutions)
  1. Describe the structure of the common form of ice.

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  2. What causes the temporary and permanent hardness of water ?

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

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  4. Write chemical reactions to show the amphoteric nature of water.

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  5. Write chemical reactions to justify that hydrogen peroxide can functio...

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  6. What is meant by demineralised water?

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  7. Is demineralised or distilled water useful for drinking purposes? If n...

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  8. Describe the usefulness of water in biosphere and biological systems.

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  9. What properties of water make it useful as a solvent? What types of co...

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  10. What properties of water make it useful as a solvent? What types of co...

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  11. Knowing the properties of H(2)O and D(2)O, do you think that D(2)O can...

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  12. What is the difference between the terms ‘hydrolysis’ and ‘hydration’ ...

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  13. How can saline hydrides remove traces of water from organic compounds?

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  14. What do you expect the nature of hydrides is, if formed by elements of...

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  15. Do you expect different products in solution when aluminium(III) chlor...

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  16. How does H(2)O(2) behave as a bleaching agent?

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  17. What do you understand by the terms: (i) hydrogen economy (ii) hydro...

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  18. What do you understand by the terms : hydrogenation

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  19. What do you understand by the terms : 'syngas'

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  20. What do you understand by the terms : water-gas shift reaction

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