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Gaokao Chemistry Practice Question

1. (6 分)化学与生活密切相关, 下列有关说法错误的是()

  1. A.用灼烧的方法可以区分蚕丝和人造纤维
  2. B.食用油反复加热会产生稠环芳香烃等有害物质
  3. C.加热能杀死流感病毒是因为蛋白质受热变性
  4. D.医用消毒酒精中乙醇的浓度为 $95 \%$

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