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Name the groups in d-block elements whic...

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

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The correct Answer is:
7, 8, 9.
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CBSE COMPLEMENTARY MATERIAL-HYDROGEN-1 Mark Questions
  1. Give the main purpose of water gas shift reaction.

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  2. Write the chemical reaction occuring during coal gasification.

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

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  4. Give an example of electron deficient covalent hydride.

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

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

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

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  8. Complete the reaction

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

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  10. Draw structure of water.

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

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

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

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

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

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  16. Write the chemical formula of “Calgon”.

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  17. A 30% solution of H2O2 is marketed as ........ volume.

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  18. Draw gas phase structure of H2O2.

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  19. Name the organic compound whose auto-oxidation is used to produce H2O2...

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  20. How is heavy water obtained from ordinary water?

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