M.2 Distillation

Simple distillation is primarily used for separating what?

• A liquid from a solution.

• Two liquids with very similar boiling points.

• Gases from liquids.

• Solids from other solids.

What is the role of the thermometer in distillation?

• To cool the vapor

• To measure the boiling point

• To speed up evaporation

• To separate impurities

What is the primary purpose of distillation?

• To combine different liquids.

• To separate solids from liquids.

• To separate mixtures that contain liquids.

• To purify gases.

Which piece of equipment is used in simple distillation to cool and condense the vapor back into liquid form?

• Flask

• Bunsen burner

• Thermometer

• Condenser

When is fractional distillation preferred over simple distillation?

• When separating a liquid from a solid.

• When separating liquids with very different boiling points.

• When separating mixtures of liquids with similar boiling points.

• When purifying gases.

What is the purpose of the glass rods inside a fractionating column?

• To heat the mixture more efficiently.

• To increase the surface area for condensation.

• To measure the temperature of the vapor.

• To prevent gas from escaping.

What happens to vapor as it rises in the fractionating column?

• It becomes hotter

• It cools and condenses

• It changes into a solid

• It mixes with air

If a mixture has liquids with boiling points of 80 °C and 150 °C, which liquid will boil and evaporate first?

• The one with boiling point 80 °C

• The one with boiling point 150 °C

• Both at the same time

• None of them

Which statement is TRUE about simple and fractional distillation?

• Simple distillation is always more accurate

• Fractional distillation is used for mixtures with close boiling points

• Fractional distillation is faster than simple distillation

• Simple distillation is used to separate crude oil

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