Separation Techniques

Charcoal powder is insoluble in water. When water is filtered, the charcoal powder becomes the _______.

• solute

• residue

• filtrate

• solvent

Tags

NGSS.MS-PS1-2

This process allows the fine flour particles to pass through the holes of the strainer while the bigger impurities remain on the strainer. What is this process called?

What is the basis for separating the components of a mixture through distillation?

• freezing point of the substances

• room temperature

• decaying period

• boiling pint of the substances

Tags

NGSS.MS-PS3-4

Which of the following statements is NOT true about the image?

• The process is called filtration.

• A process known as sedimentation is important to make the separation possible.

• The substance that passes through the filter paper is called the filtrate.

• This method is used to separate insoluble solids from liquids.

When is manual separation applicable?

• When the particles of the mixture are large enough to be seen clearly.

• When the solutes in the mixture are totally dissolved by the solvent.

• Only colloidal mixtures can be separated manually.

• When the mixture is exposed to heat.

The image shows a mixture of concrete nails and saw dusts. What technique is best to use to separate the nails from the saw dusts?

• sieving

• chromatography

• decantation

• magnetic separation

Which of the following techniques is used to separate the components of a solution?

• filtration

• decantation

• evaporation

• physical manipulation

Dyes in water soluble markers may be separated by means of

• Simple distillation

• Crystallisation

• Chromatography

• Filtration

Tags

NGSS.MS-PS1-2

Which technique is shown in the image?

• seiving

• filtration

• decanting

• crystallization

The droplets of water that appear on the outside of a glass of cold water on a warm day are an example of?

• sublimation

• condensation

• evaporation

• sedimentation

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4