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Question
Which one of the following statements related to lanthanons is incorrect?
Options
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.
Ce4+ solutions are widely used as oxidising agents in volumetric analysis.
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Solution
All the lanthanons are much more reactive than aluminium.
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