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Periodic Table and Periodicity question

2019 · 8 Apr · Shift 1 · Q14
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Periodic Table and Periodicity question

2019 · 8 Apr · Shift 1 · Q14

JEE MainChemistryPeriodic Table and PeriodicityMCQ+4 / −1
The lathanide ion that would show colour is :
  1. A
    Sm3+Sm^{3+}Sm3+
  2. B
    Gd3+Gd^{3+}Gd3+
  3. C
    Lu3+Lu^{3+}Lu3+
  4. D
    La3+La^{3+}La3+
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