Write the decreasing order of hydration enthalpy of alkali metal ions.

  • A
    $Li^{+} > Na^{+} > K^{+} > Rb^{+} > Cs^{+}$
  • B
    $Cs^{+} > Rb^{+} > K^{+} > Na^{+} > Li^{+}$
  • C
    $Na^{+} > Li^{+} > K^{+} > Rb^{+} > Cs^{+}$
  • D
    $Li^{+} > K^{+} > Na^{+} > Rb^{+} > Cs^{+}$

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