MCQ
Following triads has approximately equal size ?
- A$Na^+, Mg^{2+}, Al^{+3}$
- B$F^-, Ne, O^{2-}$
- C$Mn^+, Cr, Fe^{2+}$
- ✓$Fe, Co, Ni$
✓
Answer
Correct option: D.
$Fe, Co, Ni$
d
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