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BITSAT 2020
Exam
BITSAT
Year
2020
Subject
Chemistry
Chapter
d and f Block Elements

BITSAT 2020 · Chemistry · d and f Block Elements

Which is not the correct statement? (At. nos. Ce=58, Lu=71, La=57,...

Which is not the correct statement? (At. nos. Ce=58,Lu=71,La=57,Yb=70\mathrm{Ce}=58, \mathrm{Lu}=71, \mathrm{La}=57, \mathrm{Yb}=70 )

Options

  1. AColour of Yb3+\mathrm{Yb}^{3+} ion is pink.
  2. BLa3+\mathrm{La}^{3+} is diamagnetic.
  3. CCe4+\mathrm{Ce}^{4+} has f0f^{0} configuration.
  4. DLu3+\mathrm{Lu}^{3+} had f14f^{14} configuration.

Correct answer

A. Colour of Yb3+\mathrm{Yb}^{3+} ion is pink.

Step-by-step solution

Option(a) is incorrect as Yb3+\mathrm{Yb}^{3+} is colorless.
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