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What causes the temporary and permanent ...

What causes the temporary and permanent hardness of water?

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CHHAYA PUBLICATION-HYDROGEN-SOLVED NCERT EXERCISE
  1. Complete the chemical reactions. PbS(s) + H(2)O(2)(aq) rarr "MnO"(4...

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  2. Describe the structure of the common form of ice.

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

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

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

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

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  7. What is meant by 'demineralised' water and how can it be obtained?

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

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

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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) chlo...

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

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

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

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

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  20. What do you understand by the terms: hydrogenation

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