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Distinguish between : a. Hard water an...

Distinguish between :
a. Hard water and soft water
b. Temporary hardness and permanent hardness

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PRADEEP-HYDROGEN -ADDITIONAL QUESTIONS (short answer questions) (Water)
  1. Why do lakes freeze from top towards bottom ?

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  2. Why is ice less denser than water and what kind of attractive force mu...

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  3. Explain the structure of the common form of ice.

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  4. Explain :(i) water has maximum density at 227 K, (ii) ice floats over ...

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  5. Why is water an excellent solvent for ionic and polar compounds?

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  6. Explain the amphoteric nature of water.

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  7. Describe some unusual properties of water.

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  8. What is the action of water on (i) calcium carbide (ii) calcium phosph...

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  9. complete the following reactions : (i)CaO(s) + H(2)O(l) to " ...

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  10. What are the ways in which water molecules are bonded to the anhydrous...

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  11. Distinguish between : a. Hard water and soft water b. Temporary ha...

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  12. Discuss the principle and method of softening of hard water by organic...

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  13. Describe permutit process for softening of hard water.

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  14. Discuss briefly de-mineralisation and de-ionisation of water by ion ex...

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  15. Describe the principle of sequestration for softening of hard water.

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  16. Calculate the hardness of a water sample which contains 0.001 mole of ...

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  17. How is heavy water prepared ? Compare its physical properties with tha...

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  18. What is the action of heavy water on (i) sodium (ii) sodium hydroxide ...

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  19. Name the following compounds and write down how can they be prepared f...

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  20. Discuss the importance of heavy water in nuclear reactor.

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