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Question
On the basis of Lanthanoid contraction, explain the following:
Trends in acidic character of lanthanoid oxides.
Solution
Acidic or basic character of oxides is related to the nature of oxides. As we move along the lanthanide series from \[\ce{La}\] to \[\ce{Lu}\], the covalent character increases.
Therefore, their basic character decreases or acidic character increases.
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