Question: In context of the lanthanoids, which of the following statements is not correct ?
Because of similar properties the separation of lanthanoids is not easy
Availability of 4f electrons results in the formation of compounds in +4 state for all the
members of the series
There is a gradual decrease in the radii of the members with increasing atomic number
in the series
All the members exhibit +3 oxidation state
Correct Option: , 2
Solution:
Soloution is not required.
