Q

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

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