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Why do most of the reactions of H(2) occ...

Why do most of the reactions of `H_(2)` occur at much higher temperature?

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Due to much higher bond dissociation enthalpy of H-H bond, dihydrogen is quite stable and relatively inert at room temperature. It dissociates into atoms at about 5000K. For this reason, most of the reactions of dihydrogen occur at much higher temperature.
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Knowledge Check

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    • CHHAYA PUBLICATION-HYDROGEN-SHORT ANSWER TYPE
    1. Why do most of the reactions of H(2) occur at much higher temperature?

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    2. What characteristics do you expect from electrondeficient hydrides wit...

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    3. Explain why it is harmful to bathe in heavy water and use it for drink...

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    4. Explain why the thermal stability of H(2)O(2) is very low.

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    5. How the presence of H^(-) ions confirmed in ionic hydrides?

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    6. How do you separate 2 allotropic forms of hydrogen?

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    7. Mention the difference in chemical characteristics of the two hydrides...

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    8. Two samples of hard water contain same cations, Ca^(2+) & Mg^(2+). One...

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    9. Tube-well water, if left for sometime, assumes a brownish turbidity-ex...

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    10. Write the reactions for: preparation of H(2)O(2) from two sodium salt...

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    11. Write the reactions for: preparation of D(2)O(2) from potassium persu...

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    12. Between deionised water and distilled water which one is more pure and...

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    13. Rain water is soft, but after passing over hills and mountains it gets...

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    14. Why is Na(2)O(2) used for purifying air in submarines and in crowded ...

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    15. Comment on the reactions of dihydrogen with Chlorine

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    16. Comment on the reactions of dihydrogen with sodium

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    17. Comment on the reactions of dihydrogen with copper (II) oxide.

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    18. An ionic alkali metal hydride has covalent character to some extent an...

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    19. Sodium reacts with dihydrogen to form a crystalline ionic solid. It is...

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    20. Why is sea water not used in boilers?

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