DIRECTION: MULTIPLE CHOICE. Choose the best answer.
1. When separating the components of a solution, what change is required on one of its
components?
A. Change in Phase
A-B 2. What process is appropriate to get drinking water from seawater?
B. Change in Size C. Change in Shape D. Change in Smelt
A. Evaporation B. Condensation C. Rectification
A
D. Condensation
3. Evaporation and condensation are the two processes involved in this method.
A. Distillation B. Evaporation C. Condensation D. Rectification
B
4. How do you separate into its different components the mixture of miscible liquids?
A. Distillation B. Evaporation C. Condensation D. Rectification
c 5. When separating alcohol and water, which is boiled off?
A. Alcohol
B. Water
C. Both of them D. None of them
6. A what temperature should a mixture be heated in order to separate two miscible
liquids in boiling point at 50°C and 80°C?
A. bit higher than 80°C B. below 50°C C. bit higher 50°C D. 50°C
7. Air is needed in the process of rectification, so that gases can be?
A. for different purpose
B. become liquid C. is cooled D. is heated
8. Distillation is an effective way of separating alcohol and water, because water and
alcohol have the same?
A. different boiling point B. same boiling point. C. same color D. same solubilit
9. Some people prefer drinking distilled water than tap water, because it has?
A. impurities remove from it. B. sweeter taste. C. additional nutrients. D. gases remo
10. What do you call the liquid evaporates, then condenses via a long tube into
connecting vessel during distillation?
A. distillate
B. residue
D. solute
C. solvent
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