MCQOPTIONS
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MCQOPTIONS
This section includes 74 Mcqs, each offering curated multiple-choice questions to sharpen your Bioprocess Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
Liquid chromatography can be performed in which of the following ways? |
| A. | Only in columns |
| B. | Only on plane surfaces |
| C. | Either in columns or on plane surfaces |
| D. | Neither in columns nor on plane surfaces |
| Answer» D. Neither in columns nor on plane surfaces | |
| 52. |
The_paper_is_non-polar_in_paper_chromatography. |
| A. | True |
| B. | False |
| Answer» C. | |
| 53. |
A proper solvent that is passed through the column for elution so that separated components can be collected is calle? |
| A. | Adsorbent |
| B. | Buffer solution |
| C. | Mobile phase |
| D. | None of the mentioned |
| Answer» C. Mobile phase | |
| 54. |
In Column chromatography, the stationary phase is made of _________ and the mobile phase is made of ________? |
| A. | Solid, liquid |
| B. | Liquid, liquid |
| C. | Liquid, gas |
| D. | Solid, gas |
| Answer» B. Liquid, liquid | |
| 55. |
What does the retention factor, k’, describe?# |
| A. | The velocity from the stationary phase |
| B. | The velocity of the mobile phase |
| C. | The distribution of an analyte between the stationary and the mobile phase |
| D. | The migration rate of an analyte through a column |
| Answer» E. | |
| 56. |
The gas-solid chromatography is ______________ chromatography as per basic principle involved. |
| A. | Exclusion |
| B. | Ion-exchange |
| C. | Adsorption |
| D. | Absorption |
| Answer» D. Absorption | |
| 57. |
Chromatography cannot be used to purify volatile substances. |
| A. | True |
| B. | False |
| Answer» C. | |
| 58. |
In which of the following type of chromatography the capillary action mechanism is present? |
| A. | Liquid chromatography |
| B. | Gas chromatography |
| C. | Thin- Layer chromatography |
| D. | Paper chromatography |
| Answer» E. | |
| 59. |
In exclusion chromatography, solute molecules are separated based on |
| A. | Molecular geometry and size |
| B. | Molecular composition |
| C. | Molecular phase |
| D. | Molecular formula |
| Answer» B. Molecular composition | |
| 60. |
Which of the following types of chromatography involves the separation of substances in a mixture over a 0.2mm thick layer of an adsorbent? |
| A. | Gas liquid |
| B. | Column |
| C. | Thin layer |
| D. | Paper |
| Answer» D. Paper | |
| 61. |
From the graph given which component has the higher elution rate? |
| A. | A |
| B. | B |
| C. | A & B |
| D. | None of the mentioned |
| Answer» C. A & B | |
| 62. |
Liquid chromatography is a technique for separating |
| A. | Ions that are not dissolved in a solvent |
| B. | Ions that are dissolved in a solvent |
| C. | Ions that are dissolved in a solute |
| D. | All of the mentioned |
| Answer» C. Ions that are dissolved in a solute | |
| 63. |
Which of the following cannot be used as adsorbent in Column adsorption chromatography? |
| A. | Magnesium oxide |
| B. | Silica gel |
| C. | Activated alumina |
| D. | Potassium permanganate |
| Answer» E. | |
| 64. |
The visual output of chromatography is called? |
| A. | Chromatograph |
| B. | Chromatogram |
| C. | Electropherogram |
| D. | Autoradiogram |
| Answer» C. Electropherogram | |
| 65. |
Which of the following is not stationary phase? |
| A. | Liquid-liquid chromatography |
| B. | Gas-liquid chromatography |
| C. | Gas-solid chromatography |
| D. | Solid-solid chromatography |
| Answer» E. | |
| 66. |
In chromatography, which of the following can the mobile phase be made of? |
| A. | Solid or liquid |
| B. | Liquid or gas |
| C. | Gas only |
| D. | Liquid only |
| Answer» C. Gas only | |
| 67. |
According to the small size of the particle, which type of chromatographic separation is applicable? |
| A. | High- performance liquid chromatography (HPLC) |
| B. | Fast protein liquid chromatography (FPLC) |
| C. | Gel chromatography |
| D. | Paper chromatography |
| Answer» B. Fast protein liquid chromatography (FPLC) | |
| 68. |
There is no need of support if packed into a column when the stationary phase is |
| A. | Gas |
| B. | Liquid |
| C. | Solid |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 69. |
In chromatography, the stationary phase can be ___________ supported on a solid. |
| A. | Solid or liquid |
| B. | Liquid or gas |
| C. | Solid only |
| D. | Liquid only |
| Answer» B. Liquid or gas | |
| 70. |
Which of type of chromatography depends on the principle of size of particles? |
| A. | Affinity chromatography |
| B. | Gel- filtration chromatography |
| C. | Ion- exchange chromatography |
| D. | Multimodal chromatography |
| Answer» C. Ion- exchange chromatography | |
| 71. |
Chromatography involves two mutually |
| A. | Immiscible phases |
| B. | Miscible phases |
| C. | Soluble phases |
| D. | None of the mentioned |
| Answer» B. Miscible phases | |
| 72. |
In which type of chromatography, the stationary phase held in a narrow tube and the mobile phase is forced through it under pressure? |
| A. | Column chromatography |
| B. | Planar chromatography |
| C. | Liquid chromatography |
| D. | Gas chromatography |
| Answer» B. Planar chromatography | |
| 73. |
Which of the following condition is of reverse phase chromatography? |
| A. | The mobile phase is non-polar and stationary phase is polar |
| B. | The mobile phase is polar and stationary phase is non-polar |
| C. | Both the mobile phase and stationary phase are organic |
| D. | Both the mobile phase and stationary phase are inorganic |
| Answer» C. Both the mobile phase and stationary phase are organic | |
| 74. |
Which type of mechanism is applicable to chromatography? |
| A. | Absorption and Desorption |
| B. | Adsorption and Absorption |
| C. | Adsorption and Desorption |
| D. | Adsorption and Diffusion |
| Answer» D. Adsorption and Diffusion | |