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STD 12 - 4. d and f- block elements — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 12 - 4. d and f- block elements4 Marks
MCQ
The trivalent ion having largest size in following is
  • A
    $Ti$
  • B
    $Zr$
  • C
    $Hf$
  • ✓
    $La$
✓

Answer

Correct option: D.
$La$
d
The Lanthanide series starts from $La$ and thus $La ^{3+}$ will have the largest size because we know on moving across the period from left to right the size decreases in Lanthanide and thus the same will be similar for the trivalent ions.

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