Which of the following oxidation state is common for all lanthanoids?
1. +2
2. +3
3. +4
4. +5
NEETprep Answer: Lanthanoids show a common oxidation state of +3. Some of which also show +2 and +4 stable oxidation states along with +8 oxidation state. These are shown by those elements which by losing 2 or 4 electrons acquire a stable configuration of and
