LEC 11: Chromatography

Question 1

a chromatography technique used to separate mixture of chemical substances into its individual compounds

Answer 1

paper chromatography

Question 2

stationary phase

Answer 2

very uniform absorbent paper

Question 3

mobile phase

Answer 3

suitable liquid solvent or mixture of solvents

Question 4

ratio of the distance traveled by the solvent

Answer 4

retention factor

Question 5

high value of retention factor =

Answer 5

the interaction between the compound of interest and the surface is weak

Question 6

Rf = 0 means

Answer 6

extremely low solvent polarity

Question 7

Rf = 1 means

Answer 7

very high solvent polarity

Question 8

Rf formula

Answer 8

distance travelled by the ink from the starting line / distance travelled by the water from the starting lin