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Gaokao Chemistry Practice Question

“乌铜走银”是我国非物质文化遗产之一。该工艺将部分氧化的银丝镶嵌于铜器表面, 艺 人用手边捂边揉挰铜器, 铜表面逐渐变黑, 银丝变得银光闪闪。下列叙述错误的是

  1. A.铜的金属活动性大于银
  2. B.通过揉搓可提供电解质溶液
  3. C.银丝可长时间保持光亮
  4. D.用铝丝代替银丝铜也会变黑

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