Separating techniques

Can you separate salt from water using filtration?

• yes
• no

Which one of the following solids is insoluble in water?

• sugar
• sand
• copper sulfate
• salt

Filtering is

• Separating a soluble solid and solvent

• When one liquid is changed to another liquid

• Separating solids from liquids

• Separating an insoluble solid from a liquid

The separation technique being used is

• Filtering

• Distillation

• Evaporation

• Decanting

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

• distillation

• filtration

• chromatography

• sedimentation

The diagram below shows a chromatogram obtained when a sample X was analysed together with four other known dyes P, Q, R and S. Dye Q was known to cause cancer. Which of the following dye(s) is/are safe for use?

• P only
• S only
• P and S
• P and X

Tags

NGSS.MS-PS1-2

What is the correct image of paper chromatography???

• 
• 
• 

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

• B
• C
• D

Particles in a __________ have very little movement and the object keeps its shape and volume.

• solid
• liquid
• gas

__________ have a definite volume and tend to take the shape of their container. 

• solids
• liquids
• gases