CH-460
Separation and purification
Chemistry · Secondary 3 · Hard · Separation and purification
A student separates a mixture of ethanol (b.p. 78 °C) and water (b.p. 100 °C) by simple distillation. The thermometer reading stays at 78 °C for some time, then rises. Which statement about the distillate collected while the temperature is 78 °C is correct?
- It is pure water.
- It is mainly ethanol.
- It is an equal mixture of ethanol and water.
- It is mainly water.
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