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H^+ ions does not exist freely and is al...

`H^+` ions does not exist freely and is always associated with other atoms or molecule. Explain.

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CBSE COMPLEMENTARY MATERIAL-HYDROGEN-1 Mark Questions
  1. Which isotope of hydrogen is radioactive in nature?

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  2. H^+ ions does not exist freely and is always associated with other ato...

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  3. Give the composition of water gas.

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  4. Name the compound whose electrolysis in aqueous state, give high purit...

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  5. Give the main purpose of water gas shift reaction.

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  6. Write the chemical reaction occuring during coal gasification.

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  7. Name the element used in fuel cell for generating electricity.

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  8. Give an example of electron deficient covalent hydride.

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  9. Name the hydrides which have high potential for hydrogen storage.

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  10. Name the groups in d-block elements which do not form metallic hydride...

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  11. H2 is relatively inert at room temperature. Explain.

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  12. Complete the reaction

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  13. Name the phenomenon as a reason of which water has unusual boiling poi...

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  14. Draw structure of water.

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  15. At atmospheric pressure ices crystallised in the ......... form but at...

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  16. Mention the temperature at which density of ice is maximum.

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  17. Density of ice is .......... than density of liquid water.

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  18. How many hydrogen-bonded water molecule(s) are associated in CuSO(4).5...

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  19. Name the compound used in Clark’s method to remove temporary hardness ...

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  20. Write the chemical formula of “Calgon”.

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