【Daily Question】Chemical Analysis Version 2020.1.6
Thread Content
This post was last edited by zjp on 2020-1-6 08:29. Multiple-choice question: Which option helps to reduce the impurities that cause adsorption and retention, thereby resulting in purer crystalline precipitates? ( ). A. The temperature should be slightly higher during precipitation. B. Precipitation should take place in a more concentrated solution. C. An appropriate amount of electrolyte should be added during precipitation. D. Aging for a certain period of time should be carried out after complete precipitation. D
D. Allow aging for a certain period of time after complete precipitation