Analytical Techniques

Q. What is the typical range of wavelengths for infrared (IR) spectroscopy?
  • A. 400-700 nm
  • B. 700-1400 nm
  • C. 1400-4000 nm
  • D. 4000-10000 nm
Q. What is the typical range of wavelengths for UV-Vis spectroscopy?
  • A. 100-400 nm
  • B. 400-800 nm
  • C. 200-800 nm
  • D. 800-2500 nm
Q. What is the typical range of wavelengths measured in UV-Vis spectroscopy?
  • A. 200-400 nm
  • B. 400-800 nm
  • C. 200-800 nm
  • D. 800-1200 nm
Q. What is the wavelength range of UV-Vis spectroscopy?
  • A. 100-400 nm
  • B. 400-700 nm
  • C. 700-1000 nm
  • D. 1000-2000 nm
Q. What type of biomolecule is an enzyme?
  • A. Carbohydrate
  • B. Lipid
  • C. Protein
  • D. Nucleic acid
Q. What type of bond is primarily detected in the fingerprint region of an IR spectrum?
  • A. C-H bonds
  • B. O-H bonds
  • C. C-C bonds
  • D. Complex vibrations of multiple bonds
Q. What type of detector is commonly used in mass spectrometry?
  • A. UV detector
  • B. Fluorescence detector
  • C. Ion detector
  • D. Conductivity detector
Q. What type of detector is commonly used in UV-Vis spectroscopy?
  • A. Photomultiplier tube
  • B. Thermal conductivity detector
  • C. Mass spectrometer
  • D. Fluorescence detector
Q. What type of information can be obtained from a UV-Vis spectrum?
  • A. Molecular structure
  • B. Concentration of ions
  • C. Presence of functional groups
  • D. All of the above
Q. What type of information can be obtained from the fingerprint region of an IR spectrum?
  • A. Functional group identification
  • B. Molecular weight determination
  • C. Unique molecular structure
  • D. Concentration analysis
Q. What type of information can be obtained from the IR spectrum of a compound?
  • A. Molecular weight
  • B. Functional groups present
  • C. Concentration of the compound
  • D. Thermal stability
Q. What type of molecular vibrations are primarily observed in IR spectroscopy?
  • A. Rotational transitions
  • B. Electronic transitions
  • C. Vibrational transitions
  • D. Nuclear transitions
Q. What type of sample preparation is often required for solid samples in IR spectroscopy?
  • A. Dissolving in water
  • B. KBr pellet formation
  • C. Dilution in ethanol
  • D. Heating to vaporize
Q. What type of titration would you use to determine the concentration of a metal ion in a solution?
  • A. Redox titration
  • B. Complexometric titration
  • C. Acid-base titration
  • D. Precipitation titration
Q. What type of transition is primarily observed in the UV region of the spectrum?
  • A. Vibrational
  • B. Rotational
  • C. Electronic
  • D. Nuclear
Q. What type of transition is primarily observed in UV-Vis spectroscopy?
  • A. Nuclear spin transitions
  • B. Rotational transitions
  • C. Electronic transitions
  • D. Vibrational transitions
Q. Which analytical technique is best suited for determining the concentration of a colored solution?
  • A. NMR spectroscopy
  • B. UV-Vis spectroscopy
  • C. Gas chromatography
  • D. Titration
Q. Which electrophoresis technique is best suited for separating nucleic acids?
  • A. Capillary Electrophoresis
  • B. Gel Electrophoresis
  • C. Isoelectric Focusing
  • D. Two-Dimensional Electrophoresis
Q. Which indicator is commonly used for a strong acid-strong base titration?
  • A. Phenolphthalein
  • B. Methyl orange
  • C. Bromothymol blue
  • D. Litmus
Q. Which indicator is commonly used in a strong acid-strong base titration?
  • A. Phenolphthalein
  • B. Methyl orange
  • C. Bromothymol blue
  • D. Litmus
Q. Which indicator is commonly used in a titration involving hydrochloric acid and sodium hydroxide?
  • A. Phenolphthalein
  • B. Methyl orange
  • C. Bromothymol blue
  • D. Litmus
Q. Which indicator is commonly used in acid-base titrations?
  • A. Phenolphthalein
  • B. Bromothymol blue
  • C. Methyl orange
  • D. All of the above
Q. Which indicator is commonly used in strong acid-strong base titrations?
  • A. Phenolphthalein
  • B. Methyl orange
  • C. Bromothymol blue
  • D. Litmus
Q. Which instrument is commonly used to measure IR spectra?
  • A. Spectrophotometer
  • B. Chromatograph
  • C. Mass spectrometer
  • D. NMR spectrometer
Q. Which instrument is commonly used to measure the absorbance of a sample in UV-Vis spectroscopy?
  • A. Mass spectrometer
  • B. Chromatograph
  • C. Spectrophotometer
  • D. Fluorometer
Q. Which ion is indicated by a blue precipitate when treated with sodium hydroxide?
  • A. Copper(II)
  • B. Iron(III)
  • C. Lead(II)
  • D. Zinc
Q. Which ion is typically detected using a silver nitrate test?
  • A. Chloride
  • B. Sulfate
  • C. Nitrate
  • D. Phosphate
Q. Which modern analytical instrument combines UV-Vis and fluorescence detection?
  • A. Mass spectrometer
  • B. HPLC
  • C. NMR spectrometer
  • D. FTIR spectrometer
Q. Which modern analytical instrument is best suited for detecting trace levels of pollutants in air samples?
  • A. Gas Chromatography-Mass Spectrometry
  • B. High-Performance Liquid Chromatography
  • C. Ultraviolet-Visible Spectrophotometer
  • D. Fluorescence Spectrometer
Q. Which modern analytical instrument is commonly used for both UV-Vis and IR spectroscopy?
  • A. Mass spectrometer
  • B. Nuclear magnetic resonance
  • C. Spectrophotometer
  • D. Chromatograph
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