alleryIn planar chromatography, which value helps identify an unknown substance?
AReflux ratio
BRetention factor
CBoiling point
DPartial pressure
Answer & Solution
Correct answer: B. Retention factor
Each compound travels a characteristic fraction of the solvent distance, its Rf value, which helps identify it.
Keep practising Purification and Characterisation of Organic Compounds
Browse all Purification and Characterisation of Organic Compounds questions for NEET UG, or explore more Chemistry topics.
Related questions
In two-solvent recrystallisation, solvent and antisolvent must beIn simple recrystallisation, a hot saturated solution near the solvent's boiling point is During recrystallisation, impurity molecules usually stay in solution because theyRecrystallisation purifies a solid by dissolving it and thenIn chromatography, the substance to be separated is called theAffinity chromatography separates analytes usingIon exchange chromatography separates analytes according to theirIn size-exclusion chromatography, what elutes first?