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Gaokao Chemistry Practice Question

室温下, 下列各组离子在指定溶液中能大量共存的是

  1. A.$0.1 \mathrm{~mol} \cdot \mathrm{L}^{-1} \mathrm{NaOH}$ 溶液: $\mathrm{Na}^{+} $、$ \mathrm{~K}^{+} $、$ \mathrm{CO}_{3}{ }^{-} $、$ \mathrm{AlO}_{2}$
  2. B.$0.1 \mathrm{~mol} \cdot \mathrm{L}^{-1} \mathrm{FeCl}_{2}$ 溶液: $\mathrm{K}^{+} $、$ \mathrm{Mg}^{2+} $、$ \mathrm{SO}_{4}{ }^{2-} $、$ \mathrm{MnO}_{4}^{-}$
  3. C.$0.1 \mathrm{~mol} \cdot \mathrm{L}^{-1} \mathrm{~K}_{2} \mathrm{CO}_{3}$ 溶液: $\mathrm{Na}^{+} $、$ \mathrm{Ba}^{2+} $、$ \mathrm{Cl}^{-} $、$ \mathrm{OH}^{-}$
  4. D.$0.1 \mathrm{~mol} \cdot \mathrm{L}^{-1}{ }\mathrm{H}_{2} \mathrm{SO}_{4}$ 溶液: $\mathrm{K}^{+} $、$ \mathrm{NH}_{4}{ }^{+} $、$ \mathrm{NO}_{3}{ }^{-} $、$\mathrm{HSO}_{3}^{-}$

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