NEETChemistry-d- and f- Block Elements
NEET Chemistry Lanthanides MCQ Question
Type: MCQ-conceptual-Medium-Class 12
Which of the following statements concerning lanthanide elements is false?
A
All lanthanides are highly dense metals.
B
Most characteristic oxidation state of lanthanide elements is +3.
C
Lanthanides are separated from one another by ion exchange method.
D
Ionic radii of trivalent lanthanides steadily increases with increase in the atomic number.
Correct Answer
Option D
Detailed Explanation
The ionic radii of trivalent lanthanides decrease with an increase in atomic number due to the lanthanide contraction.
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