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QNEET-2016-Ch-1130: NEET 2016 Chemistry - Class 12 NEET-2016-Ch-1130 Solution: Which one of the following statements related to lanthanoids is …
Which one of the following statements related to lanthanoids is incorrect? 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 oxidizing agent in volumetric analysis.
Multiple Choice Options
- A Europium shows + 2 oxidation state.
- B The basicity decreases as the ionic radius decreases from Pr to Lu.
- C All the lanthanons are much more reactive than aluminium.
- D Ce(+4) solutions are widely used as oxidizing agent in volumetric analysis.
Step-by-Step Verified Solution
The first few members of the lanthanoid series
are quite reactive, almost like calcium. However,
with increasing atomic number, their behavior
becomes similar to that of aluminium.