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HARD AND SOFT WATER...

HARD AND SOFT WATER

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Hard water contains the bicarbonates, chlorides or sulphates of calcium and magnesium , whereas soft water is free from these substances.
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BHARATI BHAWAN (ENGLISH)-PRACTICALS -EXERCISE
  1. HARD AND SOFT WATER

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  2. A true solution is

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  3. which of the following will give a true solution when dissolved in wat...

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  4. when a small quantity of common salt is added to water

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  5. which of the following will give a true solution when dissolved in wat...

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  6. A mixture of chalk powder and water makes a

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  7. When a true solution is filtered

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  8. A true solution of cane sugar is prepared by dissolving

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  9. which of the following is least soluble in water ?

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  10. What is the substance called when it is present in a solution in lesse...

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  11. Which of the following is an example of a homogeneous mixture ?

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  12. Milk provides an example of a

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  13. The size of colloidal particle is between

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  14. Which of the following statements is correct regarding the particles o...

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  15. A suspension is

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  16. The particles of a substance suspended in a suspension can be separate...

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  17. When sodium chloride is dissolved in water the solution obtained is

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  18. Which of the following statements is correct regarding the colloid of ...

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  19. Which of the following pairs can produce a colloidal solution ?

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  20. What is especially observed when a beam of light is passed through a c...

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  21. A mixture of sand and sugar is an example of a

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