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Is it correct to say that hydrogen can b...

Is it correct to say that hydrogen can behave as a metal? If it is correct, mention the conditions under which such behaviour is possible.

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Yes, hydrogen under very high pressure is expected to behave like a metal. Recent reports from America have confirmed this possibility. [Wigner, E. Huntington, H. B., "On the possibility of a metallic modification of hydrogen", Journal of Chemical Physics, `3(12)1935`].
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CENGAGE CHEMISTRY ENGLISH-HYDROGEN, WATER AND HYDROGEN PEROXIDE-Ex 3.2
  1. Distinguish clearly between hard and soft water

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  2. Explain the correct context in which the following terms are used: ...

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  3. Is it correct to say that hydrogen can behave as a metal? If it is cor...

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  4. What is importance of the heavier isotopes of hydrogen?

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  5. Does hydrogen show allotropy? How many allotropes of dihydrogen are kn...

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  6. What is understood by 'hydrogen gap'?

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  7. Hydrogen forms three types of bonds in its compounds. Giving suitable ...

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  8. Elements with atomic numbers 17 and 20 form compounds with hydrogen. W...

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  9. Complete the following reactions. a.CaO((s))+H(2(g))to,b.CO(g)+H(2(g...

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  10. Describe some unusual properties of water.

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  11. What is the difference between the terms ‘hydrolysis’ and ‘hydration’ ...

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  12. What is meant by hydrogenation?

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  13. What are tHe advantages in using hydrogen as a fuel ?

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  14. Why are ionic hydrides frequently used to remove traces of water from ...

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  15. Although D(2)O resembles H(2)O chemically, yet it is a toxic substance...

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  16. Why do lakes freeze from top towards bottom ?

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  17. Why is ice less dense than water and what kind of attractive forces mu...

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  18. A white solid is either Na(2)O or Na(2)O(2). A piece of red litmus pap...

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  19. Explain the following. a. Hydrated barium peroxide is used in the pr...

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  20. An element has the minimum and maximum oxidation states as -X and +X r...

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