1.

Which one of the following statements related to lanthanons is incorrect?

Answer»

EUROPIUM shows +2 oxidation state.
The basicity decreases as the ionic RADIUS decreases from Pr to Lu
) All the lanthanons are much more reactive than aluminium
`CE^(4+)` solutions are widely used as oxidising agents in volumetric analysis.

Solution :As we move from LA to Lu, their metallic behaviour because almost similar to that of aluminium.


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