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Gaokao Chemistry Practice Question

不能正确表示下列变化的离子方程式是

  1. A.碳酸镁与稀盐酸反应: $\mathrm{CO}_{3}^{2-}+2 \mathrm{H}^{+}=\mathrm{CO}_{2} \uparrow+\mathrm{H}_{2} \mathrm{O}$
  2. B.亚硫酸氢钠的水解: $\mathrm{HSO}_{3}^{-}+\mathrm{H}_{2} \mathrm{O} = \mathrm{H}_{2} \mathrm{SO}_{3}+\mathrm{OH}^{-}$
  3. C.锌溶于氢氧化钠溶液: $\mathrm{Zn}+2 \mathrm{OH}^{-}+2 \mathrm{H}_{2} \mathrm{O}=\left[\mathrm{Zn}(\mathrm{OH})_{4}\right]^{2-}+\mathrm{H}_{2} \uparrow$
  4. D.亚硝酸钠与氯化铵溶液受热反应: $\mathrm{NO}_{2}^{-}+\mathrm{NH}_{4}^{+} = \mathrm{N}_{2} \uparrow+2 \mathrm{H}_{2} \mathrm{O}$

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