| 1 |
Chromatography involves the distribution of a solute between. |
- A. Two stationary phases
- B. Two mobile phases
- C. A stationary phase and a mobile phase
- D. Two stationary and two mobile phase.
|
| 2 |
Chromatography in which stationary phase is a solid is called. |
- A. Partition chromatography
- B. Paper chromatography
- C. High pressure liquid chromatography
- D. Adsorption chromatography
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| 3 |
During chromatography strip should be dipped into solvent mixture to a depth of. |
- A. 3-4 mm
- B. 4-5 mm
- C. 5-6 mm
- D. 6-7 mm
|
| 4 |
A filtration process could be very time consuming if it were not aided by a gentle suction, which is developed |
- A. If the paper covers the funnel up to its circumference
- B. If the paper has got small sized pores in it
- C. If the stem of the funnel is large so that it dips into the filtrate
- D. If the paper fits tightly
|
| 5 |
Which is not used as drying agent in a desiccator. |
- A. Cacl2
- B. NaCl
- C. P2O5
- D. Salica Gel
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| 6 |
The drying agent used in a desiccator. |
- A. Agcl
- B. NH4Cl
- C. P2O5
- D. AlCl3
|
| 7 |
A component having small value of K mostly remains in the. |
- A. Stationary phase
- B. Mobile phase
- C. Chromatographic tank
- D. Solvent
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| 8 |
A filtration process could by very time consuming if it were into aided by a gentle suction which is developed. |
- A. If the paper covers the funnel upto its circumference
- B. If the paper has got small sized pores in it.
- C. If the stem of the funnel is large so that it dips into the filtrate
- D. If the paper fits tightly
|
| 9 |
Which one of the following substances is not sublime material. |
- A. Iodine
- B. Benzoic acid
- C. Ammonium chloride
- D. Potash alum
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| 10 |
One of the following substances does not undergo sublimation |
- A. KMnO<sub>4</sub>
- B. Naphthalene
- C. NH<sub>4</sub>CI
- D. Iodine
|