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Gaokao Chemistry Practice Question

化学与生活密切相关,下列说法正确的是

  1. A.苯甲酸钠可作为食品防腐剂是由于其具有酸性
  2. B.豆浆能产生丁达尔效应是由于胶体粒子对光线的散射
  3. C.$\mathrm{SO}_2$可用于丝织品漂白是由于其能氧化丝织品中有色成分
  4. D.维生素C可用作水果罐头的抗氧化剂是由于其难以被氧化

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