Q. 74.4( 39 Votes )

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

Answer :

Since hydrogen exists in nature as a diatomic molecule, it is highly inert in nature as this configuration of hydrogen is highly stable. Hydrogen in its diatomic form achieves the stable noble gas configuration as that of Helium. The bond dissociation enthalpy of hydrogen bond is 435-88 kj/mol making the dihydrogen molecule is quite stable.

Even when hydrogen atom is heated up to very high temperatures hydrogen bonds does not dissociate and making it unreactive in nature under normal conditions.


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