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

Is it correct to say that hydrogen can behaves as a metal? State the conditions under which such behaviour can be 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-HYDROGEN, WATER AND HYDROGEN PEROXIDE-Ex 3.2
  1. Distinguish between : a. Hard water and soft water b. Temporary ha...

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

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  3. Is it correct to say that hydrogen can behaves as a metal? State the c...

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  4. Name the isotopes of hydrogen. What is importance of the heavier isoto...

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  5. How many allotropes of dihydrogen are known? What is their importance?

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  6. Name the class of hydrides to which H(2)O(2),B(2)H(6),NaH and LaH(3) b...

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  7. Hydrogen forms three types of bond in its compounds. Describe each typ...

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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 hydrolysis and hydrations?

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  12. What is understood by hydrogenations?

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  13. What are the advantanges in using hydrogen as a fuel?

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  14. Ionic hydrides are frequently used to remove traces of water from orga...

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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 form water top towards bottom?

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  17. Why is ice dense than water and what kind of attractive force must be ...

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

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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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