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What causes the temporary and permanent ...

What causes the temporary and permanent hardness of water?

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MAXIMUM PUBLICATION-Hydrogen-EXERCISE
  1. Why does hydrogen occur in a diatomic fom rather than in a monoatomic ...

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  2. How do you expect the metallic hydrides to be useful for hydrogen stor...

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  3. What causes the temporary and permanent hardness of water?

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  4. Write chemical reactions to show amphoteric nature of water.

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  5. Is demineralised or distilled water useful for drinking purposes? If n...

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  6. How does H2O2, behave as a bleaching agent?

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  7. What is heavy water? Mention one use of heavy water.

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  8. Explain why hydrogen peroxide is not stored in glass vessels.

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  9. What is calgon? What is its use?

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  10. The efficiency of a boiler is found to decrease when boiler scales are...

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  11. The efficiency of a boiler is found to decrease when boiler scales are...

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  12. Account for the following observations: i) The density of ice is lower...

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  13. Justify the position of hydrogen in the periodic table

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  14. Vegetable oil is converted into vanaspati fat by …………………….. process.

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  15. D2O is generally called.......

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  16. Hydrogen peroxide is an important chemical used in pollution control t...

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  17. Explain with suitable chemical equation, why hydrogen peroxide is stor...

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  18. Draw the structure of hydrogen peroxide

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  19. Permanent hardness of water can be removed only by chemical methods. W...

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  20. Permanent hardness of water can be removed only by chemical methods. S...

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