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Tardigrade
Question
Chemistry
Identify the incorrect statement from the following:
Q. Identify the
incorrect
statement from the following:
5690
179
NEET
NEET 2020
The d-and f-Block Elements
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A
Zirconium and Hafnium have identical radii of
160
p
m
and
159
p
m
, respectively as a consequence of lanthanoid contraction
6%
B
Lanthanoids reveal only
+
3
oxidation state
64%
C
The lanthanoid ions other than the
f
0
type and the
f
14
type are all paramagnetic
21%
D
The overall decrease in atomic and ionic radii from lanthanum to lutetium is called lanthanoid contraction
9%
Solution:
Lanthanoids shows general oxidation state +3 but some elements can shows +2 as well as +4