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How to prepare hydrogen peroxide from Ba...

How to prepare hydrogen peroxide from `BaO_(2)?`

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Hydrogen peroxide is prepared by the action of dil. `H_(2)SO_(4)` on hydrated barium peroxide `(BaO_(2).8H_(2)O).`
`BaO_(2)*8H_(2)O+H_(2)SO_(4)tounderset("white ppt")(BaSO_(4))darr+H_(2)O_(2)+8H_(2)O`
Barium sulphate to removed from the solution of hydrogen peroxide by illustration.
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SUBHASH PUBLICATION-HYDROGEN-Two marks questions and answers
  1. Water is amphoteric substance. Why ?

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  2. What happens when water reacts with sodium metal ?

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  3. How to prepare hydrogen peroxide from BaO(2)?

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  4. Dilute solution of hydrogen peroxide cannot be heated strongly for its...

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  5. Can sodium bicarbonate make water hard ?

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  6. Which of the hydrogen or deuterium undergoes reactions more rapidly an...

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  7. Can we remove completely temporary hardness due to Mg(HCO(3))(2) by bo...

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  8. H(2)O(2) acts as on oxidizing agent as well as reducing agent Why ?

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  9. Why do lakes freeze from top towards bottom ?

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  10. A mixture of H(2)O(2) and hydrzine with copper (II) is used as a rocke...

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  11. Water cannot be used to extinguish petrol fires. Why ?

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  12. What is the volume strenth of H(2)O(2)?

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  13. Hard water is softened before using in boilers. Expain.

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  14. What are the uses of Heavy Water ?

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  15. Show the oxidising property of H(2)O(2) with PbS.

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  16. Discuss the position of hydrogen in the periodic table is not justifie...

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  17. Explain property of H(2)O(2)"with"MnO(4)^(-) in acidic medium.

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  18. How does H(2)O(2) reduces iodine in reducing property ?

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  19. Describe the structure of common from of ice.

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  20. Distinguish clearly between (a) hard and soft water, (b) temporary har...

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