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

(N/A) The bond dissociation enthalpy of the $H-H$ bond is very high $(435.88 \, kJ \, mol^{-1})$.
This high value indicates that the $H-H$ bond is very stable and strong.
Consequently,dihydrogen is relatively inert at room temperature.
It requires high temperatures or the presence of a catalyst to react with other elements.
Additionally,the high ionization enthalpy $(1312 \, kJ \, mol^{-1})$ of hydrogen makes it difficult to lose an electron to form $H^+$ ions,which is why it primarily forms covalent bonds rather than ionic ones.