Punjab 12th Class Chemistry Analytical Chemistry Mcqs Test Online Punjab 12th Class Chemistry Analytical Chemistry Mcqs Test Online 1234567891011121314151617181920Show paginator Hide paginator Question 1 of 20Chemistry 1. The application of chemistry to criminal investigation is called: 1.Bio chemistry 2.Forensic chemistry3.Physical chemistry 4.Organic chemistry Question 1 of 20Question 2 of 20 2. Which of the following is not used as a source of infrared radiations? 1.Globar 2.Tungsten filament 3.None 4.Nernst filament Question 2 of 20Question 3 of 20 3. Which method combines the feature of gas-liquid chromatography and mass spectrometry: 1.GC – MS 2.MS3.HPLC – MS 4.LC – MS Question 3 of 20Question 4 of 20 4. Which method combines the physical separation capabilities of liquid chromatograph with the mass analysis capabilities of mass spectrometry: 1.LC – MS 2.GE – MS 3.MS 4.NMSQuestion 4 of 20Question 5 of 20 5. Which of the following species is produced in the ionization chamber of a mass spectrometer? 1.All of these2.Positively charges species 3.Radicals 4.Neutral molecules Question 5 of 20Question 6 of 20 6. Mass spectrometry can be used to determine: 1.All of these 2.Molecular weight 3.Molecular formula 4.Molecular structure Question 6 of 20Question 7 of 20 7. Which region of the electromagnetic spectrum is involved in mass spectrometry? 1.Microwave 2.Radio wave 3.None of these 4.Visible Question 7 of 20Question 8 of 20 8. What is the wavelength range of the ordinary infrared region? 1.400-800 nm2.800-1000 nm 3.0.8-2.5 μm 4.2.5-16 μm Question 8 of 20Question 9 of 20 9. Which of the following techniques does not involve electromagnetic radiations? 1.Mass spectroscopy 2.NMR spectroscopy 3.All of these involve electromagnetic radiations 4.Infrared spectroscopy Question 9 of 20Question 10 of 20 10. What kind of sample can be studied in a mass spectrometer? 1.All of these 2.A gas 3.A liquid 4.A solid Question 10 of 20Question 11 of 20 11. Which kind of information about a positively charged species obtained from a mass spectrum? 1.Relative abundance 2.None of these3.Molecular weight 4.Both of these Question 11 of 20Question 12 of 20 12. Near ultraviolet region of these electromagnetic spectrum generally lies between: 1.200-400 nm 2.400-750 nm 3.300-500 nm4.10-200 nm Question 12 of 20Question 13 of 20 13. Which of the following is used as a source of visible radiations? 1.Hydrogen discharge lamp 2.Tungsten filament lamp 3.All of these 4.Deuterium discharge lamp Question 13 of 20Question 14 of 20 14. Which region of the electromagnetic spectrum is involved in the electronic excitations? 1.None of these 2.Ultraviolet 3.Visible 4.Both of these Question 14 of 20Question 15 of 20 15. Which of the following techniques is different from the others as regards the basic principle? 1.None of these 2.Electronic spectroscopy 3.Visible spectroscopy 4.Ultraviolet spectroscopy Question 15 of 20Question 16 of 20 16. Which of the following species is detected in the mass spectrometer? 1.Neutral molecules 2.Positively charged species 3.All of these 4.Radicals Question 16 of 20Question 17 of 20 17. The position of an infrared absorption band is commonly expressed by: 1.Wavelength 2.Both of these 3.Wave number 4.None of these Question 17 of 20Question 18 of 20 18. Mass spectroscopy is an analytical technique which involves: 1.All of these2.Separation of the gaseous ions 3.Measurement of the relative abundance of the gaseous ions4.Production of gaseous ions form the sample Question 18 of 20Question 19 of 20 19. Far ultraviolet or vacuum ultraviolet region generally lies between 1.400-750 nm 2.10-200 nm 3.200-400 nm 4.300-500 nmQuestion 19 of 20Question 20 of 20 20. Far infrared region of the electromagnetic radiation generally lies between: 1.10-200 nm 2.50-1000 nm 3.1-20 nm 4.100-400 nm Question 20 of 20 Loading... Test By Subject Punjab Test By Topics 12th Class Chemistry You Can Learn and Gain more Knowledge through our Online Quiz and Testing system Just Search your desired Preparation subject at Gotest.