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Which of the following samples of water ...

Which of the following samples of water would not produce lather with soap?

A

Water containing dissolved NaCl

B

Water containing dissolved `MgSO_(4)`

C

Water containing dissolved `Ca(HCO_(3))_(2)`

D

Water containing dissolved `K_(2)SO_(4)`.

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ICSE-HYDROGEN-REVIEW EXERCISES
  1. What happens when water is treated with F(2)?

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  2. What happens when water is treated with Na?

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  3. Which of the following samples of water would not produce lather with ...

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  4. What is deionised water and how can it be prepared?

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  5. What happens when a sample of water containing Ca(HCO(3))(2) is boiled...

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  6. What do you understand by softening of hard water?

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  7. What do you understand by the hardness of water and what are the cause...

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  8. Write the chemical formulae of calgon and permutit. For what purpose a...

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  9. What is heavy water? Can it be used for drinking purposes?

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

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  11. What happens when heavy water reacts with Na

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  12. What happens when heavy water reacts with Al(4)C(3)

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  13. What happens when heavy water reacts with CaO

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  14. What happens when heavy water reacts with P(4)O(10)?

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  15. Give a brief account of the biological and physiological effects of he...

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  16. Mention some important uses of heavy water.

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  17. Describe the auto-oxidation process for the manufacture of H(2)O(2).

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  18. What happens when barium peroxide is treated with cold phosphoric ac...

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  19. What happens when a 50% cold solution of sulphuric acid is subjecte...

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  20. What happens when hydrogen peroxide is treated with potassium ferroc...

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