%%

Gaokao Chemistry Practice Question

下列有关化学反应的叙述正确的是

  1. A.Fe 在稀硝酸中发生钝化
  2. B.$\mathrm{MnO}_{2}$ 和稀盐酸反应制取 $\mathrm{Cl}_{2}$
  3. C.$\mathrm{SO}_{2}$ 与过量氨水反应生成 $\left(\mathrm{NH}_{4}\right)_{2} \mathrm{SO}_{3}$
  4. D.室温下 $\mathrm{Na}$ 与空气中 $\mathrm{O}_{2}$ 反应制取 $\mathrm{Na}_{2} \mathrm{O}_{2}$

Want to know if you got it right?

Answer this and thousands more real Gaokao previous-year questions free, get graded instantly, and climb the global ranked leaderboard.

Practice Gaokao free →

More Gaokao Chemistry questions