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Gaokao Chemistry Practice Question

广东有众多国家级非物质文化遗产, 如广东剪纸、粤绣、潮汕工夫茶艺和香云纱染整技 艺等。下列说法不正确的是

  1. A.广东剪纸的裁剪过程不涉及化学变化
  2. B.冲泡工夫茶时茶香四溢, 体现了分子是运动的
  3. C.制作粤绣所用的植物纤维布含有天然高分子化合物
  4. D.染整技艺中去除丝胶所用的 纯碱水溶液属于纯净物

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