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2. Electrochemistry — Chemistry STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceChemistry2. Electrochemistry1 Mark
MCQ
Which of the following order is correct ?
  • A
    $K^+ < Ca^{2+} < P^{3-} < S^{2-}$ : Ionic size
  • B
    $Na^+_{(aq)} > K^+_{(aq)} > Rb^+_{(aq)} > Cs^+_{(aq)}$ : Electrical conductance
  • ✓
    $Al^{3+}_{(aq)} > Mg^{2+}_{(aq)} > Na^+_{(aq)}$ : Hydrated size
  • D
    $I^-_{(aq)} < Br^-_{(aq)} < F^-_{(aq)}$ : Ionic mobility
✓

Answer

Correct option: C.
$Al^{3+}_{(aq)} > Mg^{2+}_{(aq)} > Na^+_{(aq)}$ : Hydrated size
c

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