Chemistry · PYQ NEET UG 2021

Choose the INCORRECT statement among the following.

1. Most of the trivalent lanthanoid ions are colourless in the solid state.
2. Lanthanoids are good conductors of heat and electricity.
3. Actinoids are highly reactive metals, especially when finely divided.
4. Actinoid contraction is greater for element to element than lanthanoid contraction.