Which of the solvent systems can be used to give the best separation of a mixture of 5 dyes ( B1, B2, Y5, R40, G3) as indicated in Table below (pay attention to the Rf values):
Rf of FD&C dyes
Solvent System
B1
B2
Y5
R40
G3
H2O with 2% NaCl
0.92
0.10
0.35
0.22
0.82
H2O with 2% iodized table salt
0.90
0.14
0.30
0.11
0.90
n-propanol/H2O, 2:l
0.64
0.38
0.39
0.49
0.50
n-propanol/H2O, 2:1,
0.65
0.14
0.12
0.53
0.55
and 0.50% table salt
isopropanol/H2O, 3:2
0.79
0.45
0.44
0.67
0.78
Group of answer choices
H2O with 2% NaCl
sopropanol/H2O, 3:2