1 The painkiller paracetamol is synthesised from 4-aminophenol.
Chromatography was carried out on an impure sample of paracetamol. The results are shown
(not drawn to scale).
solvent front
0.35 cm
key
0.26 cm
S = impure sample of paracetamol
P = pure paracetamol
.
0.17 cm
baseline
S
Р
The sample of paracetamol was contaminated with 4-aminophenol only.
What is the R, value of 4-aminophenol?
D
C 0.74
1.35
0.65
B
0.49
A