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One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points; September 16th

2016-09-16View Original

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Multiple-choice question: Vinyl chloride distillation is a process in which, by taking advantage of the differences in the ( ) of various substances, these substances are separated into different components through multiple cycles of ( ) and ( ) under certain ( ). A. Freezing point ; Pressure ; evaporation ; Condensation ; B. Freezing point ; Temperature ; evaporation ; Condensation ; C. Boiling point ; Pressure ; evaporation ; Condensation ; D. Boiling point ; Temperature ; evaporation ; Condensation ; Answer: D, boiling point ; Temperature ; evaporation ; Condensation ;
Reply #22016-09-16
A. Freezing point; Pressure ; evaporation ; Condensation
Reply #32016-09-16
Vinyl chloride distillation is a process that utilizes the difference in (boiling points) of substances; at a certain (temperature), various components are separated through multiple cycles of (evaporation) and (condensation). A. Freezing point ; Pressure ; evaporation ; Condensation ; B. Freezing point ; Temperature ; evaporation ; Condensation ; C. Boiling point ; Pressure ; evaporation ; Condensation ; D. Boiling point ; Temperature ; evaporation ; Condensation ;
Reply #42016-09-16
Vinyl chloride distillation is a process that utilizes the differences in (D) of substances; under certain (D) conditions, different components are separated through multiple cycles of (D) and (D). A. Freezing point ; Pressure ; evaporation ; Condensation ; B. Freezing point ; Temperature ; evaporation ; Condensation ; C. Boiling point ; Pressure ; evaporation ; Condensation ; D. Boiling point ; Temperature ; evaporation ; Condensation ;
Reply #52016-09-16
D. Boiling point; Temperature ; evaporation ; Condensation ;

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