Separation and Purification Techniques & Unit 2 Revision

Front

What is distillation used for?

Back

Distillation is used to separate liquid from a solution by heating the liquid to create vapor and then cooling the vapor to form a liquid.

Front

What is fractional distillation?

Back

Fractional distillation is a separation technique used to separate a mixture of liquids with different boiling points, such as water and ethanol.

Front

What is evaporation used for?

Back

Evaporation is used to separate a dissolved solid from its solution by heating the solution until the liquid evaporates, leaving the solid behind.

Front

What is chromatography?

Back

Chromatography is a technique used to separate mixtures based on the different rates at which components move through a medium.

Front

What types of mixtures can be separated by chromatography?

Back

Chromatography can separate pigments from natural colors, colors in a dye, and colors of flower extracts.

Front

What is filtration?

Back

Filtration is a process used to separate solids from liquids or gases using a filter that allows only the fluid to pass through.

Front

What is crystallization?

Back

Crystallization is a separation technique used to form solid crystals from a solution, typically used to purify a solid.

Front

What is sublimation?

Back

Sublimation is the process where a solid changes directly into a gas without passing through the liquid state, used to separate certain solids.

Front

What is the principle behind distillation?

Back

The principle behind distillation is the difference in boiling points of the components in a mixture.

Front

What is the purpose of using a separating funnel?

Back

A separating funnel is used to separate immiscible liquids based on their densities.