Grade 12Inorganic Chemistry
Pm(OH)3,Pr(OH)3,Eu(OH)3 basicity order?explain this? Why?
Pm(OH)3,Pr(OH)3,Eu(OH)3 basicity order?explain this? Why?
1 Answer
TEJA KRISHNA
(3) its due to lanthanide contraction.as the size of lanthanide ions decreases from La3+ to Lu3+, the covalent character of the hydroxides increases and hence the basic strength decreases.La(OH)3 is the most basic and Lu(OH)3 is the least basic. ... Thus, La(OH)3 most basic while Lu(OH)3 is the least basic.
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