Eduprobe
Question:
The lanthanide ion that would show colour is:
La^3+
Sm^3+
Lu^3+
Gd^3+
Solution:
Correct option is A. Sm^3+
Solution:- (A) Sm^3+Sm^3+ has only unpaired electrons. Thus, it will show colour.Sm^3+(4f^5)= yellow colour
La^3+
Sm^3+
Lu^3+
Gd^3+
Correct option is A. Sm^3+
Solution:- (A) Sm^3+Sm^3+ has only unpaired electrons. Thus, it will show colour.Sm^3+(4f^5)= yellow colour