1.

Whichone of thefollowingis notcorrect

Answer»

La`(OH)_(2)` is lessbasicthan`(OH)_(2)`
Inlanthaniod seriesionicradiusof `Ln^(3+)` ionsdecreases
La isactuallyelementof transitionmetalseriesratherthan LANTHANIDESERIES
ATOMICRADII of ZrandHfare samebecauseof LANTHANIDECONTRACTION .

ANSWER :A


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