JEE Mains · Chemistry · STD 11 - 8.3. Organic chemistry purification and characterization
Using column chromatography, mixture of two compounds ' \(A\) ' and ' \(B\) ' was separated. '\(A\)' eluted first, this indicates ' \(B\) ' has
- A low \(R_f\), weaker adsorption
- B high \(R _{ f }\), stronger adsorption
- C high \(R_f\), weaker adsorption
- D low \(R _{ f }\), stronger adsorption
Answer & Solution
Correct Answer
(D) low \(R _{ f }\), stronger adsorption
Step-by-step Solution
Detailed explanation
If any component eluted second then it means that its \(R_f\) value is low and its adsorption is stronger \(R _{ f }=\frac{\text { distance covered by substance from base line }}{\text { total distance covered by solvent from base line }}\)
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