f-block elements exhibit different oxidation state, colour, complex fo – InterviewSolution

1.	f-block elements exhibit different oxidation state, colour, complex formation like properties. The size oflanthanides decreases due to poor screening effect of 4f electrons. It is called lanthanide contraction. Lanthanide hydroxides are basic in nature The colour of lanthanide ion is due to
Answer» f-f TRANSITIONS in PARTIALLY FILLED f-orbitals f-f transitions in COMPLETELY filled f-orbitals both None Solution :f-f transitions

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