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

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry3. Classification of elements and periodicity in properties1 Mark
MCQ
Incorrect order of ionic radius is
  • A
    $Na^+ > Mg^{+2} > Al^{+3}$
  • B
    $V^{+2} > V^{+3} > V^{+4} > V^{+5}$
  • C
    $K^+ > Sc^{+3} > V^{+5} > Mn^{+7}$
  • ✓
    $O^{-2} > Rb^+ > Sr^{+2} > Cs^+$
✓

Answer

Correct option: D.
$O^{-2} > Rb^+ > Sr^{+2} > Cs^+$
d
$Cs^+ > Rb^+ > Sr^{+2} > O^{-2}$ order of Radii

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