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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
Which of the following pairs involves isoelectronic ions
  • A
    $M{n^{ + 3 }}$and $F{e^{+ 2}}$
  • ✓
    $M{n^{ + 2}}$ and $F{e^{ + 3 }}$
  • C
    $C{r^{+ 3 }}$ and $F{e^{ + 2}}$
  • D
    $F{e^{+  2}}$ and $C{o^{+ 2}}$
✓

Answer

Correct option: B.
$M{n^{ + 2}}$ and $F{e^{ + 3 }}$
b
(b)Among the given choice $M{n^{ + 2 }}$ and $F{e^{+ 3 }}$ involve isoelectronic ions.

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