First slide
Chemical properties

Statement-I: In aqueous solution, compounds of Eu+2  are good reducing agents.

Statement-II: Initial members of Lanthanoids resemble aluminium in their chemical reactivity


I) ECe+4/Ce+3o is +1.74V. Ce+4 is a very strong oxidant in aqueous solution. But the rate of reactivity is very slow.

II) EEu+3/Eu+20 is negative. Thus Eu+2 is a strong reductant in aqueous solution.

III) Initial members of Lanthanoids resemble Calcium in their reactivity and later members resemble Aluminium in their reactivity.

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