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Gaokao Chemistry Practice Question

物质的性质决定用途，下列两者对应关系不正确的是

  1. A.$\mathrm{SO}_2$能使某些色素褪色，可用作漂白剂
  2. B.金属钠导热性好，可用作传热介质
  3. C.$\mathrm{NaClO}$溶液呈碱性，可用作消毒剂
  4. D.$\mathrm{Fe}_2\mathrm{O}_3$呈红色，可用作颜料

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