The reducing power of a metal depends oh various factors. Suggest the factor which makes Li, the strongest reducing agent in aqueous solution. (a) Sublimation enthalpy (b) Ionisation enthalpy (c) Hydration enthalpy (d) Electron-gain enthalpy

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Ashutosh Kumar

It is actually the hydration enthalpy which makes Li, the strongest reducing agent in aqueous solution.
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Due to small size of Li hydration enthalpy is more. This hydration enthalpy compensates for higher ionisation enthalpies, thereby facilitating the release of electron and hence stronger is the reducing agent.
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