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Gaokao Chemistry Practice Question

$\mathrm{N}_{\mathrm{A}}$ 代表阿伏加德罗常数的值, 下列说法正确的是

  1. A.常温常压下, $124 g \mathrm{gP}_{4}$ 中所含 $\mathrm{P}-\mathrm{P}$ 键数目为 $4 \mathrm{~N}_{\mathrm{A}}$
  2. B.$100 \mathrm{~mL} 1 \mathrm{~mol} \cdot \mathrm{L}^{-1} \mathrm{FeCl}_{3}$ 溶液中所含 $\mathrm{Fe}^{3^{+}}$的数目为 $0.1 \mathrm{~N}_{\mathrm{A}}$
  3. C.标准状况下, $11.2 \mathrm{~L}$ 甲烷和乙烯混合物中含氢原子数目为 $2 \mathrm{~N}_{\mathrm{A}}$
  4. D.密闭容器中, $2 \mathrm{~mol} \quad\mathrm{SO_{2}}$ 和 $1 \mathrm{mol}\quad \mathrm{O_{2}}$ 催化反应后分子总数为 $2 \mathrm{~N}_{\mathrm{A}}$

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