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Class 11
Chemistry
Hydrogen
discuss the consequences of high enthalpy of h h b...

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

Answer:

The ionization enthalpy of H-H bond is very high (1312 kJ 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 (H₂), hydrides with elements, and a large number of covalent bonds. Since ionization enthalpy is very high, hydrogen does not possess metallic characteristics (lustre, ductility, etc.) like metals.

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

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

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