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Explain why in the laboratory preparatio...

Explain why in the laboratory preparation of `H_(2)O_(2)` :
Mn`O_(2) " "or PbO_(2)` cannot be used instead of Ba`O_(2)` for preparing `H_(2)O_(2)` - why ?

Text Solution

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Unlike `BaO_(2)`
have any peroxo linkage (-O-O-).
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CHHAYA PUBLICATION-HYDROGEN-WARM UP EXERCISE
  1. Explain why in the laboratory preparation of H(2)O(2) : The paste of...

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  2. Explain why in the laboratory preparation of H(2)O(2) : It is better...

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  3. Explain why in the laboratory preparation of H(2)O(2) : MnO(2) " "o...

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  4. What is Merck's perhydrol? How can it be prepared ?

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  5. How can H(2)O(2) be manufactured by using 50% H(2)SO(4) solution?

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  6. What is Marshall's acid?

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  7. How can H(2)O(2) solution be prepared by electrolysing an equimolar mi...

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  8. Explain why a solution of H(2)O(2) cannot be concentrated by distillat...

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  9. Which organic compound is used for manufacturing H(2)O(2) conveniently...

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  10. Discuss the structure of H(2)O(2) molecule.Explain why the shape of H(...

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  11. Explain why the dissociation of H(2)O(2) is a disproportionation react...

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  12. Mention some of the factors which accelerate the decomposition of H(2)...

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  13. Name two compounds which can decelerate the decomposition of H(2)O(2).

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  14. H(2)O(2) reacts with NaOH to give two types of salts - why? Write dow...

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  15. Explain why H(2)O(2) cannot liberate CO(2) by reducing carbonate or bi...

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  16. H(2)O(2) exhibits both oxidising and reducing properties. Explain why.

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  17. What do you mean by the 'antichlor' property of H(2)O(2)?

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  18. Give the mechanism of the bleaching action of H(2)O(2).

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  19. What are perhydrates? Give examples.

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  20. How is H(2)O(2) preserved in the laboratory?

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