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Why the use of hard water is disadvantag...

Why the use of hard water is disadvantages?

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AAKASH SERIES-HYDROGEN AND ITS COMPOUNDS-QUESTIONS FOR DESCRIPTIVE ANSWERS
  1. Why the use of hard water is disadvantages?

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  2. Ion exchange method is the best to purify water. Comment.

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  3. One litre water has 81 mg of calcium bicarbonate and 95 mg of magnesiu...

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  4. Hydrogen peroxide is more acidic than water. Substantiate.

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  5. A hard water sample contains 162 ppm of calcium bicorbonate only. Find...

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  6. A hard water sample contains magnesium bicarbonate only. 100 ml of the...

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  7. Find out the volume of oxygen gas liberated at S.T.P. on complete dec...

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  8. Find out the volume (in ml) of perhydrol to be decomposed to get oxyge...

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  9. Why does hydrogen occur in adiatomic form rather than in a monoatomic ...

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  10. What do you understand by (a) electron-deficient compounds, (b) electr...

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  11. What characteristics do you expect from an elecron deficient hydrode w...

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  12. Do you expect the carbon hydrides of the type (C(n)H(2n+2)) to act as ...

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

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  14. What do you understand by the term auto-protolysis of water? What is i...

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  15. Complete the following chemical reaction and classify them into (a) hy...

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  16. It is desired to oxide totally 1.6g of methane using oxygen at STP. Wh...

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  17. 25.5 g of H(2)O(2) solution on decomposition gave 1.68 L of O(2) at ST...

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  18. 20ml of hydrogen peroxide solution is added to excess of acidified KI ...

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  19. 52ml of sample of hydrogen peroxide solution after acidification with ...

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  20. Calculate the volume strength of 1.7% H(2)O(2) solution.

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