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Gaokao Chemistry Practice Question

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

  1. A.$12 \mathrm{g} \ \mathrm{NaHSO}_{4}$ 中含有 $0.2 \mathrm{~N}_{\mathrm{A}}$ 个阳离子
  2. B.$11.2 \mathrm{~L}$ 乙烷和丙烯的混合气体中所含碳氢键数为 $3 \mathrm{~N}_{\mathrm{A}}$
  3. C.$8 g\ \mathrm{CH}_{4}$ 含有中子数为 $3 \mathrm{~N}_{\mathrm{A}}$
  4. D.$0.1 \mathrm{~mol}\ \mathrm{H}_{2}$ 和 $0.1 \mathrm{~mol} \ \mathrm{I}_{2}$ 于密闭容器中充分反应后, $\mathrm{HI}$ 分子总数为 $0.2 \mathrm{~N}_{\mathrm{A}}$

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