Chromatography

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

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

• red
• orange
• green
• black

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

• 0

• 1

• 2

• 3

What is the correct image of paper chromatography???

• 
• 
• 

Two or more substances that are mixed together but not chemically combined create a...

• solvent

• compound

• mixture

Which two were the same mixture of dyes?

• 1 and 5

• 2 and 6

• 3 and 4

• 4 and 6

Which of the dyes was a pure substance?

• 1

• 2

• 3

• 4

The R_f value  for the blue component is 

• 0.3
• 0.7
• 10
• 3

The R_f value  for the blue component is 

• 0.3
• 0.7
• 10
• 3