chromatography 8

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

• distillation

• filtration

• chromatography

• sedimentation

chromatography separates the mixture of dyes on the basis of their ----------------------------

• density
• solubility
• gravity
• boiling point

A pure substance shows ------------------ spot on chromatogram

• 0

• 1

• 2

• 3

The R_f value  for the red component is 

• 0.3
• 0.7
• 10
• 7

The R_f value  for the blue component is 

• 0.3
• 0.7
• 10
• 3

What is the correct image of paper chromatography???

• 
• 
• 

What is chromatography?

• A way to see pretty colors

• A laboratory technique used to separate a mixture.

• A form of distillation

Which ink is a mixture of different inks?

• red

• black

• blue

• yellow

What molecules move up the paper to carry the different colors of ink?

• color

• fat

• water

The mobile phase in paper chromatography is typically a

• plasma
• solid
• gas
• liquid