Silica gel and alumina are used as __________________?
Correct answer: B. Stationary phase
- A. Mobile phase
- B. Stationary phase
- C. Mixed phase
- D. Single phase
Explanation
Silica gel and alumina are polar solid adsorbents that remain fixed in column or thin-layer chromatography, so they act as the stationary phase. The solvent moving over them is the mobile phase. Students may choose a because silica gel and alumina come into contact with the solvent, but they do not move with it.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Properties of Liquids
Liquid behavior depends on intermolecular forces, which produce surface tension, viscosity, capillary action and a definite volume without a fixed shape. The topic also covers vapor pressure, evaporation, boiling point and the effect of temperature and external pressure, while distinguishing evaporation at the surface from boiling throughout the liquid.
Practise Liquids
350 free Liquids MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Properties of Liquids questions
The solvent or mixture of solvents used for separation of compounds is called____________________?
Shaking two immiscible liquids increases_________________?
The weakest (in strength) of the following intermolecular forces is_______________?
A process controlled by Distributive law is__________________?
Different components of a mixture have different Rf values due to________________?
In solvent extraction ether is used to separate products of organic synthesis from________________?