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Distinguish clearly between hard and ...

Distinguish clearly between
hard and soft water

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ICSE-HYDROGEN-SHORT ANSWER TYPE QUESTIONS
  1. What happens when H(2)O(2) reacts with chlorine.

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  2. What happens when H(2)O(2) is treated with acidified potassium perm...

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  3. Distinguish clearly between hard and soft water

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  4. Distinguish clearly between temporary and permanent hardness.

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  5. Describe the structure of hydrogen peroxide.

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  6. How is hydrogen peroxide manufactured from H(2)SO(4) ? Describe the pr...

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  7. What precautions should be observed for the safe storage of hydrogen p...

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  8. Describe some important oxidising properties of hydrogen peroxide

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  9. Describe some important reducing properties of hydrogen peroxide

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  10. Why does H(2)O(2) act both as an oxidising and a reducing agent?

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  11. What do you understand by the volume strength of H(2)O(2) ? Illustrate...

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  12. Mention some important uses of hydrogen peroxide

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  13. What is understood by 'Water gas shift reaction' ? Discuss· its use fo...

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  14. Complete the following reactions : CaO(s)+H(2)O(l)to

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  15. Complete the following reactions : Na(2)O(s)+H(2)O(l)to

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  16. Compare the structures of H(2)O and H(2)O(2).

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  17. Explain, why hydrogen peroxide is stored in coloured/plastic bottles.

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  18. Complete the following equations : Fe(s)+H(2)O(g)to

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  19. Complete the following equations (i) PbS(s) +H(2)O(2) (aq) to ...

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  20. Complete and balance the following equations: MnO(4)^(-) (aq) + H(2)...

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