9.7  Discuss the consequences of high enthalpy of H–H bond in terms of chemical reactivity of dihydrogen?

The ionization enthalpy of the H-H bond is very high (1312kJ/mol). It means hydrogen has less tendency to form $H^{+}$ ions. Its ionization enthalpy is comparable to halogens. Hence it forms a diatomic molecule, hydrides with the elements, and a large number of covalent bonds. It does not possess any metallic character like metals

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