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Gaokao Chemistry Practice Question

已知 $N_{\mathrm{A}}$ 是阿伏加德罗常数的值, 下列说法错误的是

  1. A.$3 \mathrm{~g}\ ^{3} \mathrm{He}$ 含有的中子数为 $1 N_{\mathrm{A}}$
  2. B.$1 \mathrm{~L} \ 0.1 \mathrm{~mol} \cdot \mathrm{L}^{-1}$ 磷酸钠溶液含有的 $\mathrm{PO}_{4}^{3-}$ 数目为 $0.1 N_{\mathrm{A}}$
  3. C.$1 \mathrm{~mol} \mathrm{~K}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}$ 被还原为 $\mathrm{Cr}^{3+}$ 转移的电子数为 $6 N_{\mathrm{A}}$
  4. D.$48 \mathrm{~g}$ 正丁烷和 $10 \mathrm{~g}$ 异丁烷的混合物中共价键数目为 $13 N_{\mathrm{A}}$

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