【Daily Question】Chemical Analysis Edition, 3/18/2019
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This post was last edited by zjp on 2019-3-18 08:06. Multiple-choice question: (B, C, D) 24. Which of the following options is incorrect? 2 A. To decompose barium sulfate (BaSO4), sodium carbonate is used as a flux. B. When sodium peroxide is used as a flux, a porcelain crucible is employed. C. When determining phosphorus in steel, sulfuric acid is used as a solvent. D. When sodium hydroxide is used as a solvent, a platinum crucible is used. B, C, D
24. The incorrect options among the following are BCD. B. A porcelain crucible is used when sodium peroxide is used as a flux. C. Sulfuric acid is used as a solvent for determining phosphorus in steel. D. A platinum crucible is used when sodium hydroxide is used as a solvent