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The reducing power of a metal depends on...

The reducing power of a metal depends on 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

Text Solution

Verified by Experts

The correct Answer is:
C
The size of `Li^(+)` ion is very small. Therefore, hydration enthalpy of `Li^(+)` (aq) ion is very high. (`Delta_(H)` Hydration = 480 kJ)
This is responsible for the reducing nature of lithium (Li).
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