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NEET 2021
Exam
NEET
Year
2021
Subject
Chemistry
Chapter
d and f Block Elements

NEET 2021 · Chemistry · d and f Block Elements

The incorrect statement among the following is:

The incorrect statement among the following is:

Options

  1. AActinoid contraction is greater for element to element than Lanthanoid contraction.
  2. BMost of the trivalent Lanthanoid ions are colorless in the solid state.
  3. CLanthanoids are good conductors of heat and electricity.
  4. DActinoids are highly reactive metals, especially when finely divided.

Correct answer

B. Most of the trivalent Lanthanoid ions are colorless in the solid state.

Step-by-step solution

Most of the trivalent Lanthanoid ions are coloured in the solid state.

All other statements are correct.

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