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

Explain why the water obtained after passing hard water through cation exchange resins is acidic.

Water obtained by purification of organic ion exchange resins is :

In the preparation of deionised water how do organic cation or anion exchange resins work?

What is the difference between the water softened by the permutit process and the water softened by the organic ion exchangers?

The ease of adsorption of the hydrated alkali metal ions on the ion-exchange resins follows the order -

State one method to remove permanent hardness of water.

CHHAYA PUBLICATION-HYDROGEN-SOLVED NCERT EXERCISE
  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 and how can it be obtained?

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

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  11. What is the difference between the terms 'hydrolysis' and 'hydration'?

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

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

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  14. Do you expect different products in solution when aluminium (III) chlo...

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

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  16. Do you expect different products in solution when aluminium (III) chlo...

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

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  18. What do you understand by the terms: hydrogen economy

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  19. What do you understand by the terms: hydrogenation

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

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