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why la(OH)3 HAVE MPRE COVALENT CHARACTER THAN La(OH)3

why la(OH)3 HAVE MPRE COVALENT CHARACTER THAN La(OH)3

Grade:12th pass

1 Answers

Arun
25750 Points
6 years ago
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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