Chromatography
In column chromatography, the stationary phase is:
Select the correct option:
Solution
Silica gel or alumina
Column Chromatography is based on the principle of differential adsorption.
- Stationary Phase: A porous material with a large surface area, known as an Adsorbent, is packed into a vertical column. Common materials include Silica gel (SiO2) and Alumina (Al2O3).
- Mobile Phase: An appropriate solvent (or mixture) flows down through the adsorbent.
- Separation: Different components of the mixture adsorb onto the stationary phase with varying strengths. The less strongly adsorbed components move faster and are eluted first.
🔒 Solution Hidden from View
Submit your answer to unlock the detailed step-by-step solution.
More chromatography Practice Questions
In a thin layer chromatography experiment a particular component travels 2.4 cm while the solvent fr...
In a thin layer chromatography experiment a particular component travels 2.4 cm while the solvent fr...
Column chromatography separates a mixture as different components are adsorbed to different extents ...
Column chromatography separates a mixture as different components are adsorbed to different extents ...
On a paper chromatogram, a coloured component travelled 2.7 cm from the baseline while the solvent f...
On a paper chromatogram, a coloured component travelled 2.7 cm from the baseline while the solvent f...
In a TLC experiment, a compound spot moves 3.6 cm while the solvent front moves 6.4 cm from the base...
In a TLC experiment, a compound spot moves 3.6 cm while the solvent front moves 6.4 cm from the base...
In column chromatography using silica gel as stationary phase, the compound that is least polar amon...
In column chromatography using silica gel as stationary phase, the compound that is least polar amon...
In paper chromatography, a solute shows Rf value 0.60 when the solvent front moves 8.0 cm. The dista...
In paper chromatography, a solute shows Rf value 0.60 when the solvent front moves 8.0 cm. The dista...
About This Question
- Subject
- chemistry
- Chapter
- purification and characterisation of organic compounds
- Topic
- chromatography
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
Silica gel or alumina
Column Chromatography is based on the principle of differential adsorption.
- Stationary Phase: A porous material with a large surface area, known as an Adsorbent, is packed into a vertical column. Common materials include Silica gel (SiO2) and Alumina (Al2O3).
- Mobile Phase: An appropriate solvent (or mixture) flows down through the adsorbent.
- Separation: Different components of the mixture adsorb onto the stationary phase with varying strengths. The less strongly adsorbed components move faster and are eluted first.
This easy difficulty chemistry question is from the chapter purification and characterisation of organic compounds, covering the topic of chromatography. It appeared in the 2025 exam.
Looking for more practice? Explore all chemistry questions or browse purification and characterisation of organic compounds questions on RankGuru.