Year 8 Science - Chapter 2 Properties of Materials ( Soluble , Chromatography)

Pure substance contain only ...................type of substance

What is the suitable technique for a mixture of iron filings and sand?

• filtration

• magnetic separation

• decanting

Which process would you use to separate solid particles from larger particles in a mixture with filter paper in a funnel to trap solids so that the liquids will pass through.

• Chromatography

• Magnetic Attraction

• Filtration

• Floatation

Solute is

• A substance that is dissolved

• A liquid that other substance will dissolve in

• a mixture in which particles of a substance are mixed with particles of a liquid so that the substance can no longer be seen.

Which plant species has plant pigments most similar to those in A?

• B
• C
• D

On the chromatogram given -------------- is mixture.

• red
• orange
• green
• black

contains 2 or more substances that are physically combined

• element

• compound

• mixture

What is a saturated solution?

• A solution contianing the maximum amount of solute dissolved in the solvent

• A solution that is boiled

• A solution containing the maximum amount of solvent dissolved in the solute.

• A solution containing minumum amount of solute dissolved in the solvent.

Ink can be separated by a method of -----------------------------------------------

• distillation

• filtration

• chromatography

• sedimentation

carbon dioxide, CO₂, is an example of a(n)

• element

• compound

• mixture