【Daily Question】Chemical Analysis Edition, 3/27/2021
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This post was last edited by zjp on 2021-3-27 09:19. Multiple-choice question: In the process of precipitation, the operations that result in the formation of crystalline precipitates are ( ). A. Precipitation in a dilute and hot solution B. Precipitation in a hot and concentrated solution C. Adding the precipitant to the test solution drop by drop while stirring continuously D. Adding the precipitant to the test solution all at once E. Heating the resulting precipitate in a water bath or storing it Answer: ACE
A. Precipitation in a dilute and hot solution C. Adding the precipitant to the test solution drop by drop while stirring continuously E. Heating the resulting precipitate in a water bath or storing it