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Explain preparation of hydrogen using el...

Explain preparation of hydrogen using electrolysis.

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Hydrogen is obtained by electrolysis of water.
(i) Electrolyte : water containing teraces of acid or alkali or the electrolysis of aqueous solution of sodium hydroxide or potassium hydroxide.
(ii) Anode : Nickel
(iii) Cathode : Iron
(iv) At anode : `2OH^-toH_2O+1//2O_2+2e^-`
(v) At cathode : `2H_2O+2e^-to2OH^-+H_2`
(vi) Overall reaction : `H_2OtoH_2+1//2O_2`
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SURA PUBLICATION-HYDROGEN-WRITE BRIEF ANSWER To THE FOLLOWING QUESTIONS.
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  2. Complete the following chemical reactions and classify them in to (a) ...

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  3. Complete the following chemical reactions and classify them in to (a) ...

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  4. Complete the following chemical reactions and classify them in to (a) ...

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  5. Hydrogen peroxide can function as an oxidising agent as well as reduci...

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  6. Do you think that heavy water can be used for drinking purposes ?

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  7. What is water-gas shift reaction?

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  8. Justify the position of hydrogen in the periodic table?

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  9. What are isotopes? Write the names of isotopes of hydrogen.

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  10. Mention the uses of heavy water .

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  11. Explain the exchange reactions of deuterium

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  12. How do you convert para hydrogen into ortho hydrogen ?

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  13. Mention the uses of deuterium.

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  14. Explain preparation of hydrogen using electrolysis.

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  15. A groups metal (A) which is present in common salt reacts with (B) to ...

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  16. NH3 has exceptionally high melting point and boiling point as compared...

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  17. Why interstitial hydrides have a lower density than the parent metal.

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  18. Compare the structures of H(2)O and H(2)O(2)

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

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  20. Arrange NH3,H2O and HF in the order of increasing magnitude of hydroge...

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