Between la(oh)3 and lu(oh)3 which one is more basic and why
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its due to lanthanide contraction.as the size of lanthanide ions decreses 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
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La (OH) 3 is more basic because in period , the size decreases with decrease in basic character .
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