Published by:
CGP EDU Academic Team
Published on: August 13, 2026
Which one of the following statements related to lanthanons is incorrect
A
Europium shows 
oxidation state.
oxidation state.
B
The basicity decreases as the ionic radius decreases from 
to Lu.
to Lu.
C
All the lanthanons are much more reactive than aluminium.
D
solutions are widely used as oxidizing agent in volumetric analysis.
Text Solution
Verified by ExpertsThe correct answer is:
C
The first few members ofthelanthanoid series are quite reactive, almost like calcium. However, with increasing atomic number, their behaviour becomes similar to that of aluminium.
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