- 1(current)
Q. No.A mixture of A, B, and C is added to a column containing adsorbent for separation. Using solvent, A is eluted first and B is eluted last. The B has:
1. High \(R_f \), less adsorption
2. Low \(R_f \) , strongly adsorbed
3. High \(R_f \), strong adsorption
4. Low \(R_f \) , weakly adsorbed
1. High \(R_f \), less adsorption
2. Low \(R_f \) , strongly adsorbed
3. High \(R_f \), strong adsorption
4. Low \(R_f \) , weakly adsorbed
Subtopic: Purification of Organic Compounds |
Level 3: 35%-60%
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Hints
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Which one of the following is a correct statement when two compounds I and II
are eluted by column chromatography (adsorption of I > II)?
1. II moves slower and has higher \(R_f\) value than I
2. II moves faster and has higher \(R_f\) value than I
3. I moves faster and has higher \(R_f\) value than II
4. I moves slower and has higher \(R_f\) Value than II
are eluted by column chromatography (adsorption of I > II)?
1. II moves slower and has higher \(R_f\) value than I
2. II moves faster and has higher \(R_f\) value than I
3. I moves faster and has higher \(R_f\) value than II
4. I moves slower and has higher \(R_f\) Value than II
Subtopic: Purification of Organic Compounds |
57%
Level 3: 35%-60%
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Hints
Please attempt this question first.
- 1(current)
Q. No.
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