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Permanent hardness of water can be remov...

Permanent hardness of water can be removed only by chemical methods. Write the name of any one salt responsible for the permanent hardness of water.

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MAXIMUM PUBLICATION-Hydrogen-EXERCISE
  1. Explain with suitable chemical equation, why hydrogen peroxide is stor...

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  2. Draw the structure of hydrogen peroxide

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

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

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  5. How is sodium hexametaphosphate useful in removing the permanent hardn...

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  6. Suggest a disadvantage of hard water.

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  7. Hard water contains calcium and magnesium salts. Therefore it does not...

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  8. How will you remove the hardness from the water by using washing soda?

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  9. WhIch method is more suitable to get pure demineralised water?

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  10. Hydrogen peroxide is stored in plastic vessels in dark why?

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  11. About 18% of the total production of dihydrogen is from coal. What is ...

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  12. About 18% of the total production of dihydrogen is from coal. How is d...

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  13. Write any two uses of dihydrogen.

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  14. Water is an amphoteric substance. Justify

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  15. Hydrides are binary compounds of hydrogen with other elements. Give on...

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  16. H2O2 is a bleaching agtent. Why?

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  17. Complete the following reaction. (Zn(s) + NaOH(aq) rarr^(heat) ………………....

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  18. In a seminar, if you are asked to present a paper on hydrogen economy,...

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  19. Give one reaction supporting the amphoteric nature of water.

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  20. Write the names of any two electron - rich hydrides.

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