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Discuss the consequences of high enthalp...

Discuss the consequences of high enthalpy of `H-H` bond in terms of chemical reactivity of dihydrogen.

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The ionization enthalpy of hydrogen is very high `(1312kJ mol^(-1))`. This indicates that hydrogen has a low tendency to form `H^(+)` ions. Its ionization enthalpy value is comparable to that of halogens. Hence, it forms diatomic molecules `(H_(2))`, hydrides with elements, and a large number of covalents bonds. Since ionization enthalpy is very high, hydrogen does not posses metallic characteristics (lustre, ductility, etc.) like metals.
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NCERT-HYDROGEN-EXERCISE
  1. Describe the bulk preparation of dihydrogen by electrolytic method. Wh...

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  2. Complete the following reactions: a.H(2)(g)+M(m)O(o)(s)overset(Delt...

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  3. Discuss the consequences of high enthalpy of H-H bond in terms of chem...

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  4. What do you understand by (i) electron-deficient, (ii) electron-precis...

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  5. What characteristics do you expect from an electron-deficient hydride ...

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  6. Do you expect the carbon hydrides fo the type (C(n)H(2n+2)) to act as ...

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  7. What do you understand by the term “non-stoichiometric hydrides”? Do y...

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  8. How do you expect the metallic hydrides to be useful for hydrogen stor...

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  9. How does the atomic hydrogen or oxy-hydrogen torch funtion for cutting...

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  10. Among NH(3),H(2)O, and HF, which would you expect to have highest magn...

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  11. Saline hydrides are known to react with water violently producing fire...

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  12. Arrange the following (i) CaH(2), BeH(2) and TiH(2) in order of increa...

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  13. Compare the stuctures of H(2)O and H(2)O(2).

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  14. What do you understand by the term 'auto-protolysis' of water? What is...

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  15. Consider the reacton of water with F(2) and suggest, in terms of oxida...

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  16. Complete the following chemical reactions. (i) PbS(s)+H(2)O(2)(aq) t...

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  17. Describe the structure of the common form of ice.

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  18. What causes the temporary and permanent hardness of water ?

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  19. Discuss the principle and method of softening of hard water by synthet...

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  20. Write chemical reactions to show the amphoteric nature of water.

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