Home Chemistry D and F - Block Elements Skill Builder Across the lanthanide series, the basicity o…
Chemistry D and F - Block Elements Skill Builder Single Correct MCQ
Published on: August 13, 2026

Across the lanthanide series, the basicity of the lanthanide hydroxides:

A
Increases
B
Decreases
C
First increases and then decreases
D
First decreases and then increases

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The correct answer is:
B

Across lanthanide series, due to lanthanide contraction, size of cation decreases, covalent character increase and basic character decrease. So; basicity of hydroxides decreases.

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