【Daily Question】Chemical Analysis Edition, 2021.9.4
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The incorrect practice when distilling or refluxing flammable liquids with low boiling points is A: adding a few drops of boiling point elevating agent to the flask to prevent violent boiling; B: heating at a slow pace rather than too quickly; C: using an open flame to heat the flask directly; D: filling the flask with more than 1/2 of its volume with liquid. C
C. Directly heat the flask with an open flame