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Grade 12Inorganic Chemistry

Why la(oh)3 is a stronger base than lu(oh)3 . Give reason

Profile image of Somesh
8 Years agoGrade 12
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1 Answer

Profile image of Arun
ApprovedApproved Tutor Answer8 Years ago
Dear Somesh
its due to lanthanide contraction.as the size of lanthanide ions decreases frm La3+ to Lu3+ , the covalent character of the hydroxides increases and hence the basic strength decreases.La(OH)3 is most basic and Lu(OH)3 is least basic.
Regards
Arun (askIITians forum expert)