JEE Main20199 Jan 2019Evening ShiftChemistrySurface ChemistryActual
The correct match between Item I and Item II is: Item I Item II A Benzaldehyde P Mobile phase B Alumina Q Adsorbent C Acetonitrile R Adsorbate
Options
- AA → P ; B → R ; C → Q
- BA → R ; B → Q ; C → P
- CA → Q ; B → P ; C → R
- DA → Q ; B → R ; C → P
Correct answer
B. A → R ; B → Q ; C → P
Step-by-step solution
In chromatography; Benzaldehyde is a substance that is absorbed. It acts as an adsorbate. Benzaldehyde:- Adsorbate Alumina is a highly porous substance that adsorbs another substance. It acts as an adsorbent. Alumina:- adsorbent Acetonitrile is used as a mobile phase in chromatography. Acetonitrile:- mobile phase