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Transition and Inner Transition Elements — Chemistry STD 12 — Question

Tamilnadu BoardEnglish MediumSTD 12ChemistryTransition and Inner Transition Elements1 Mark
MCQ
Find the odd one out.
  • A
    $Mn^{3+}$
  • B
    $Fe^{3+}$
  • ✓
    $Cr^{3+}$
  • D
    $CO^{3+}$
✓

Answer

Correct option: C.
$Cr^{3+}$
$Cr^{3+}$
Reason: It has negative reduction potential whereas others have positive reduction potential.

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