Match the entries in the Group I with the elution conditions...

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Match the entries in the Group I with the elution conditions in Group II.
Group I Group II
P. Ion exchange chromatography 1. Isocratic solvent
Q. Hydrophobic column chromatography 2. Ampholytes
R. Gel filtration chromatography 3. Increasing gradient of salt
S. Chromatofocusing 4. Decreasing gradient of polarity

A. P-4, Q-1, R-2, S-3

B. P-4, Q-3, R-1, S-2

C. P-3, Q-4, R-1, S-2

D. P-3, Q-4, R-2, S-1

Answer: Option B


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