MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 22 Mcqs, each offering curated multiple-choice questions to sharpen your Analytical Instrumentation knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The diagram show below is the picture of Hollow cathode lamp. Identify the unmarked component. |
| A. | Glass tube |
| B. | Quartz window |
| C. | Non- conducting glass |
| D. | Mica shield |
| Answer» C. Non- conducting glass | |
| 2. |
Which of the following options explains the process of ‘sputtering’ that occurs in Hollow Cathode Lamp? |
| A. | Positive ions collide with cathode surface and metal atoms from cathode are ejected |
| B. | Negative ions collide with cathode surface and metal atoms from anode are ejected |
| C. | Positive ions collide with negative ions and metal atoms from anode are ejected |
| D. | Positive ions collide with negative ions and photons are ejected |
| Answer» B. Negative ions collide with cathode surface and metal atoms from anode are ejected | |
| 3. |
Atomic Absorption Spectroscopy is used for the analysis of metals. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
Which of the following is not the requirement of a good flame in flame photometer? |
| A. | Liquid sample must be evaporated to form solid residue |
| B. | Solid residue must decompose to form atoms |
| C. | Atoms must be produced such that they have the ability to get excited to higher states |
| D. | Atoms must be produced such that they are in stable state |
| Answer» E. | |
| 5. |
Which of the following is not a fuel used in flame photometry? |
| A. | Acetylene |
| B. | Propane |
| C. | Hydrogen |
| D. | Camphor oil |
| Answer» E. | |
| 6. |
Which of the following is the function of the atomiser in the emission system of Atomic Absorption Spectroscopy? |
| A. | To split the beam into two |
| B. | To break the steady light into pulsating light |
| C. | To break large mass of liquid into small drops |
| D. | To reduce the sample into atomic state |
| Answer» D. To reduce the sample into atomic state | |
| 7. |
Which of the following is not a component of the emission system in Flame photometer? |
| A. | Burner |
| B. | Atomiser |
| C. | Fuel gases and their regulation |
| D. | Chopper |
| Answer» E. | |
| 8. |
Which of the following is the function of the Flame or Emission system in Atomic Absorption Spectroscopy? |
| A. | To split the beam into two |
| B. | To break the steady light into pulsating light |
| C. | To filter unwanted components |
| D. | To reduce the sample into atomic state |
| Answer» E. | |
| 9. |
WHICH_OF_THE_FOLLOWING_IS_THE_FUNCTION_OF_ATOMISER_IN_THE_EMISSION_SYSTEM_OF_ATOMIC_ABSORPTION_SPECTROSCOPY??$ |
| A. | To split the beam into two |
| B. | To break the steady light into pulsating light |
| C. | To break large mass of liquid into small drops |
| D. | To reduce the sample into atomic state |
| Answer» D. To reduce the sample into atomic state | |
| 10. |
Which of the following is not the requirement of a good flame in flame photometer?$ |
| A. | Liquid sample must be evaporated to form solid residue |
| B. | Solid residue must decompose to form atoms |
| C. | Atoms must be produced such that they have the ability to get excited to higher states |
| D. | Atoms must be produced such that they are in stable state |
| Answer» E. | |
| 11. |
Which_of_the_following_is_not_a_fuel_used_in_flame_photometry?$ |
| A. | Acetylene |
| B. | Propane |
| C. | Hydrogen |
| D. | Camphor oil |
| Answer» E. | |
| 12. |
At what pressure should the gases in the sealed tube be maintained in the Hollow cathode lamp? |
| A. | 1 to 5 torr |
| B. | 20 to 30 torr |
| C. | 40 to 50 torr |
| D. | 50 to 55 torr |
| Answer» B. 20 to 30 torr | |
| 13. |
Which of the following options explains the process of ‘sputtering’ that occurs in Hollow Cathode Lamp?$ |
| A. | Positive ions collide with cathode surface and metal atoms from cathode are ejected |
| B. | Negative ions collide with cathode surface and metal atoms from anode are ejected |
| C. | Positive ions collide with negative ions and metal atoms from anode are ejected |
| D. | Positive ions collide with negative ions and photons are ejected |
| Answer» B. Negative ions collide with cathode surface and metal atoms from anode are ejected | |
| 14. |
Atomic_Absorption_Spectroscopy_is_used_for_the_analysis_of_metals. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 15. |
Which of the following is not a component of emission system in Flame photometer? |
| A. | Burner |
| B. | Atomiser |
| C. | Fuel gases and their regulation |
| D. | Chopper |
| Answer» E. | |
| 16. |
Atomic absorption spectroscopy is also called as Absorption Flame Photometry. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 17. |
Which of the following is the function of Flame or Emission system in Atomic Absorption Spectroscopy? |
| A. | To split the beam into two |
| B. | To break the steady light into pulsating light |
| C. | To filter unwanted components |
| D. | To reduce the sample into atomic state |
| Answer» E. | |
| 18. |
Which of the following is the function of the chopper in Atomic Absorption Spectroscopy? |
| A. | To split the beam into two |
| B. | To break the steady light into pulsating light |
| C. | To filter unwanted components |
| D. | To reduce the sample into atomic state |
| Answer» C. To filter unwanted components | |
| 19. |
How can the intensity of radiation be increased in Hollow cathode lamp? |
| A. | Addition of non-conductive protective shield of mica |
| B. | Addition of nitrogen to neon or argon in the lamp |
| C. | Increasing the pressure of the filling gas |
| D. | Changing the metal of the anode |
| Answer» B. Addition of nitrogen to neon or argon in the lamp | |
| 20. |
In Atomic Absorption Spectroscopy, with what material is the cathode in Hollow cathode lamp constructed? |
| A. | Tungsten |
| B. | Quartz |
| C. | Element to be investigated |
| D. | Aluminium |
| Answer» D. Aluminium | |
| 21. |
In Atomic Absorption Spectroscopy, which of the following is the generally used radiation source? |
| A. | Tungsten lamp |
| B. | Xenon mercury arc lamp |
| C. | Hydrogen or deuterium discharge lamp |
| D. | Hollow cathode lamp |
| Answer» E. | |
| 22. |
Which of the following is the principle of Atomic Absorption Spectroscopy? |
| A. | Radiation is absorbed by non-excited atoms in vapour state and are excited to higher states |
| B. | Medium absorbs radiation and transmitted radiation is measured |
| C. | Colour is measured |
| D. | Colour is simply observed |
| Answer» B. Medium absorbs radiation and transmitted radiation is measured | |