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- #d and f Block Elements
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Identify the incorrect statement from the following
Option: 1
Lanthanoids reveal only +3 oxidation state.
Option: 2
The lanthanoids ions other than the type and
type all paramagnetic.
Option: 3
The overall decrease in atomic and ionic radii from lanthanum to lutetium is called lanthanoid contraction.
Option: 4
Zirconium and Hafnium have identical radii of 160 pm and 159 pm, respectively as a consequence of lanthanoid contraction.
Answers (1)
Lanthanoids can show oxidation states of +2, +3 as well as +4.
Hence the correct option is option 1.
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