How does the lanthanoid contraction affect the basicity of Ln(OH)₃ hydroxides?

Question

Accepted Answer

It causes the basicity to decrease from La(OH)₃ to Lu(OH)₃

Answer

It causes the basicity to increase from La(OH)₃ to Lu(OH)₃

Answer

It has no effect on basicity

Answer

It makes all Ln(OH)₃ equally basic

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