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Gaokao Chemistry Practice Question

1. (6 分) 化学与生活密切相关。下列说法错误的是()

  1. A.PM2.5 是指粒径不大于 $2.5 \mu \mathrm{m}$ 的可吸人悬浮颗粒物
  2. B.绿色化学要求从源头上消除或减少生产活动对环境的污染
  3. C.燃煤中加人 $\mathrm{CaO}$ 可以减少酸雨的形成及温室气体的排放
  4. D.天然气和液化石油气是我国目前推广使用的清洁燃料

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