Q.

Which of the following property decreases on moving from Ce to Lu ?

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a

Covalent character of halides

b

Basic nature of oxides

c

Para magnetism of trivalent ions

d

Complex forming tendency

answer is A.

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Detailed Solution

Basic nature of oxides decreases on moving from Ce to Lu. As size of the cation decreases, ionic character  and covalent character of hydroxides .

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