In steam distillation, the _____________________?
Correct answer: C. Product must be immiscible with water
- A. Temperature is 100°C
- B. Temperature is more than 100° C
- C. Product must be immiscible with water
- D. Temperature is higher than the boiling point of either component
Explanation
Steam distillation is used when the product is immiscible with water, allowing the combined vapour pressures to produce boiling below the normal boiling point of either pure component. Thus the temperature is not necessarily 100°C or higher than either boiling point.
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