Question
Chemistry Question on d -and f -Block Elements
Across the lanthanide serie ,the basicity of the lanthanide hydroxides
A
Increases
B
Decreases
C
First increases and then decreases
D
First decreases and then increases
Answer
Decreases
Explanation
Solution
Across the lanthanide series, the basicity of the lanthanide hydroxide decreases due to decrease in the ionic radii of tripositive ions.