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An acidic solution of hydrogen peroxi...

An acidic solution of hydrogen peroxide behaves as an oxidising as well as reducing agent. Illustrate it with the help of a chemical equation.

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(i) `H_(2)O_(2)` oxidises acidified KI to iodine
`2Kl + H_(2)O_(2) + H_(2)SO_(4) to I_(2) + K_(2)SO_(4)+ 2H_(2)O`
(ii) `H_(2)O_(2)` reduces `KMnO_(4)` to `MnO_(2)` in alkaline medium.
`2KMnO_(4) + 3H_(2)O_(2) to 2MnO_(2) + 2KOH + 3O_(2) + 2H_(2)O`
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PRADEEP-HYDROGEN -NCERT EXEMPLAR PROBLEMS WITH ANSWER, HINTS AND SOLUTIONS (SHORT ANSWER QUESTIONS)
  1. Explain why HCl is a gas and HF is a liquid ?

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  2. When the first element of the periodic table is treated with diox...

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  3. Rohan heard that instructions were given to the laboratory attend...

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  4. Given reason why hydrogen resembles alkali metals ?

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  5. Hydrogen generally form covalent compounds. Give reason

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  6. Why is the ionisation enthalpy of hydrogen higher than that of sod...

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  7. Basic pricinple of hyrogen economy is transpotation and storage of ...

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  8. What is the importance of heavy water ?

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  9. Write the Lewis structure of hydrogen peroxide .

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  10. An acidic solution of hydrogen peroxide behaves as an oxidising ...

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  11. With the help of suitable examples, explain the property of H(2)O(2...

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  12. Why is water molecule polar ?

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  13. Why does water show high boiling points as compared to hydrogen su...

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  14. Why can dilute solutions of hydrogen peroxide not be concentrated b...

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  15. Why is hydrogen peroxide stored in wax lined bottles?

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  16. Why does hard water not from lather with soap ?

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  17. Phosphoric acid is perferred over sulphuric acid in perparing hyd...

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  18. How will you accout for 104.5^(@) bond angle in water ?

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  19. Write redox reactions between fluorine and water.

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  20. Write two reactions to explain amphoteric nature of water .

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