MCQ
Which is not the correct Statement? (At. nos. $Ce = 58,\,Lu = 71,\,La = 57,\,Yb = 70$ )
- ✓Colour of $Yb^{3+}$ ion is pink.
- B$La^{3+}$ is diamagnetic.
- C$Ce^{4+}$ has $f^o$ configuration.
- D$Lu^{3+}$ had $f^{14}$ configuration.
✓
Answer
Correct option: A.
Colour of $Yb^{3+}$ ion is pink.
a
Option $(a)$ is incorrect as $Yb^{3+}$ is colorless.
Option $(a)$ is incorrect as $Yb^{3+}$ is colorless.
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