STANDARDChemistry-D & F Block Elements
STANDARD Chemistry Lanthanoid Contraction MCQ Question
Type: MCQ-conceptual-Medium-Class 12
Zr and Hf have almost equal atomic and ionic radii because of
A
diagonal relationship
B
lanthanoid contraction
C
actinoid contraction
D
belonging to the same group
Correct Answer
Option B
Detailed Explanation
The lanthanoid contraction is responsible for the similar atomic and ionic radii of Zr and Hf, as it causes a decrease in atomic size across the lanthanide series.
Found an issue with this question?
Related Questions
More from
Which of the following statements is true about the oxidation state of chromium in chromate and dichromate ions?
(general)Chemistry
Which transition element has only one oxidation state of +2?
Transition ElementsChemistry
Which of the following metals does not form higher oxides above its highest oxidation state as mentioned in the NCERT context?
(general)Chemistry