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Gaokao Chemistry Practice Question

下列物质的化学成分不正确的是

  1. A.生石灰: $\mathrm{Ca}(\mathrm{OH})_{2}$
  2. B.重晶石: $\mathrm{BaSO}_{4}$
  3. C.尿素: $\mathrm{CO}\left(\mathrm{NH}_{2}\right)_{2}$
  4. D.草酸: $\mathrm{HOOC}-\mathrm{COOH}$

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