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Q.

Which one among the following metals is the weakest reducing agent ?

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a

Li

b

Na

c

K

d

Rb

answer is B.

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Detailed Solution

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Among alkali metals Li in powerful radius agent because of its high enthalpy of hydration and Na is weak reducing agent
The reducing power depends on enthalpy of fusion enthalpy of vaporization enthalpy of ionization and enthalpy of hydration

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