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  4. Across the lanthanide series, the basicity of the lanthanide hydroxides

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Q. Across the lanthanide series, the basicity of the lanthanide hydroxides

BVP MedicalBVP Medical 2010

Solution:

Basicity of lanthanide hydroxides decreases along the lanthanide series from left to right. This is because size decreases from left to right due to lanthanide contraction. This results in increased covalent character of $ M-OH $ bond.