【Daily Question】Chemical Engineering Principles 100: Extractants (July 5) (Double reward to celebrate reaching 100!)

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This post was last edited by “Back to Cambridge” on July 3, 2015, at 17:53. Starting today, the Chemical Engineering Theory section is launching the “Question of the Day” activity, aimed at helping everyone reinforce their basic knowledge of chemical engineering. Subsequently, series such as “Fundamentals of Chemical Engineering”, “Mass Transfer and Separation”, “Chemical Engineering Thermodynamics”, and “Chemical Process Technology” will also be introduced. We hope for your active support! For replies to the “Question of the Day” activity, answers can be viewed directly; however, the thread will be closed after one day! ! Participation earns 2 wealth points, with an additional 3 wealth points for correct answers~~~ Multiple-choice question: The amount of extractant added should be such that the intersection point M between the raw material and the extractant is located at ( ). A. Area above the solubility curve ； B. Area below the solubility curve ； C. On the solubility curve ； D、On the vertical axis ； B