Question
Which is not the correct statement? (At. nos. Ce =58, Lu =71, La =57, Yb =70 )
BITSAT
Chemistry
d and f Block Elements
2020
BITSAT 2020
BITSAT Chemistry Question (2020) — Solution
Options
- A. Colour of Yb ^ 3+ ion is pink.
- B. La ^ 3+ is diamagnetic.
- C. Ce ^ 4+ has f^ 0 configuration.
- D. Lu ^ 3+ had f^ 14 configuration.
Answer
A. Colour of Yb ^ 3+ ion is pink.
Step-by-step solution
Option(a) is incorrect as Yb ^ 3+ is colorless.
Related: Chemistry — d and f Block Elements · All PYQ Banks