NEET 2021 Chemistry Lanthanoids and Actinoids MCQ Question
The incorrect statement among the following is:
Actinoid contraction is greater for element to element than Lanthanoid contraction.
Most of the trivalent Lanthanoid ions are colorless in the solid state.
Lanthanoids are good conductors of heat and electricity.
Actinoids are highly reactive metals, especially when finely divided.
Correct Answer
Detailed Explanation
Lanthanoids are generally poor conductors of heat and electricity due to their f-electron configuration. Option C is incorrect.
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