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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
Which of the following order is correct for the property mentioned in brackets ?
  • A
    $S^{2-} > Cl^-> K^+ > Ca^{2+}$ (Ionisation energy)
  • ✓
    $C < N < F < O$ ( $2^{nd}$ Ionisation energy)
  • C
    $B > Al > Ga > In > Tl$ (Electronegativity)
  • D
    $Na^+ > Li^+ > Mg^{2+} > Be^{2+} > Al^{3+}$ (Ionic radius)
✓

Answer

Correct option: B.
$C < N < F < O$ ( $2^{nd}$ Ionisation energy)
b

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