Answer:
Oxidising power depends on three
factors :
(i) Electron
gain enthalpy.
(ii) Bond
dissociation enthalpy
(iii) Hydration
enthalpy.
Electron gain
enthalpy of fluorine (-333 kJ/mol) is less negative than chlorine (- 349 k
J/mol) but still fluorine is stronger oxidising agent due to low bond
dissociation energy (158.8 kJ/mol) and high hydration enthalpy (515 kJ/mol) of flourine
than chlorine (242.6 and 381 kJ/mol).
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