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3. Classification of elements and periodicity in properties — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistry3. Classification of elements and periodicity in properties1 Mark
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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