Analytical Techniques

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The Analytical Techniques section focuses on the methods and instruments used for qualitative and quantitative chemical analysis, essential for understanding experimental chemistry, material characterization, and laboratory diagnostics. This module is designed for school (Class 11–12) and undergraduate students, with strong emphasis on conceptual clarity, instrumentation basics, and exam relevance.

In this section, you will study:

  • Classical analytical methods – qualitative analysis, gravimetric and volumetric analysis

  • Spectroscopic techniques – UV–Visible spectroscopy, IR spectroscopy, NMR (introductory level), and mass spectrometry

  • Chromatographic methods – paper chromatography, TLC, column chromatography, gas chromatography, and HPLC (basics)

  • Electroanalytical techniques – conductometry, potentiometry, pH measurement, and electrochemical cells

  • Thermal and surface analysis (introductory) – TGA, DTA, and DSC (UG level)

  • Instrumentation principles – working, components, and applications

  • Data interpretation – spectra analysis, peak identification, and quantitative calculations

  • NCERT- and UG-aligned explanations, supported by diagrams, numericals, MCQs, assertion–reason questions, and PYQs

The content is structured to bridge theory with laboratory practice, strengthen analytical and interpretation skills, and help students confidently answer instrumentation- and application-based questions in school and undergraduate examinations.

Develop a systematic and practical understanding of Analytical Techniques to master this crucial area of modern Chemistry.

Q. Which of the following is NOT a typical application of IR spectroscopy?
  • A. Identifying organic compounds
  • B. Measuring the concentration of solutions
  • C. Studying molecular vibrations
  • D. Analyzing gas samples
Q. Which of the following ligands is a bidentate ligand?
  • A. Ammonia (NH3)
  • B. Ethylenediamine (en)
  • C. Chloride ion (Cl-)
  • D. Water (H2O)
Q. Which of the following metals is most commonly used in the extraction of aluminum?
  • A. Iron
  • B. Copper
  • C. Bauxite
  • D. Zinc
Q. Which of the following methods can be used to identify cations in a solution?
  • A. Thin Layer Chromatography
  • B. Electrophoresis
  • C. Flame Photometry
  • D. All of the above
Q. Which of the following methods can be used to monitor the endpoint of a titration?
  • A. pH meter
  • B. Visual color change
  • C. Conductivity measurement
  • D. All of the above
Q. Which of the following methods can be used to perform a titration?
  • A. Manual titration with a burette
  • B. Automated titration systems
  • C. Microscale titration techniques
  • D. All of the above
Q. Which of the following methods can be used to separate proteins based on their charge?
  • A. Gas Chromatography
  • B. Electrophoresis
  • C. Mass Spectrometry
  • D. Spectrophotometry
Q. Which of the following methods is best suited for the qualitative analysis of cations in a mixture?
  • A. Spectrophotometry
  • B. Ion chromatography
  • C. Precipitation reactions
  • D. Mass spectrometry
Q. Which of the following methods is primarily used for the qualitative analysis of anions?
  • A. Titration
  • B. Chromatography
  • C. Spectroscopy
  • D. Precipitation reactions
Q. Which of the following statements about IR spectroscopy is true?
  • A. It can only analyze gases.
  • B. It requires a vacuum for accurate measurements.
  • C. It can be used to study solid, liquid, and gas samples.
  • D. It is not effective for polar molecules.
Q. Which of the following statements about the periodic table is true?
  • A. Elements in the same group have similar chemical properties.
  • B. Elements in the same period have similar atomic masses.
  • C. Noble gases are highly reactive.
  • D. Metals are located on the right side of the periodic table.
Q. Which of the following statements is true regarding the IR spectrum of a molecule?
  • A. It provides information about the molecular weight.
  • B. It shows the electronic transitions of the molecule.
  • C. It indicates the presence of specific functional groups.
  • D. It measures the thermal properties of the substance.
Q. Which of the following techniques can be used to confirm the presence of chloride ions?
  • A. Barium chloride test
  • B. Silver nitrate test
  • C. Sodium hydroxide test
  • D. Calcium carbonate test
Q. Which of the following techniques can be used to identify metal cations in a solution?
  • A. UV-Vis Spectroscopy
  • B. Gas Chromatography
  • C. Mass Spectrometry
  • D. Thin Layer Chromatography
Q. Which qualitative analysis technique can separate amino acids based on their charge?
  • A. Thin-layer chromatography
  • B. Gel electrophoresis
  • C. Gas chromatography
  • D. Liquid-liquid extraction
Q. Which qualitative analysis technique is best for separating complex mixtures of organic compounds?
  • A. Gas Chromatography
  • B. Liquid Chromatography
  • C. Paper Chromatography
  • D. Capillary Electrophoresis
Q. Which qualitative analysis technique is best suited for separating charged particles in a solution?
  • A. Chromatography
  • B. Electrophoresis
  • C. Spectroscopy
  • D. Titration
Q. Which qualitative analysis technique is most effective for detecting trace metals in a sample?
  • A. Atomic absorption spectroscopy
  • B. Nuclear magnetic resonance
  • C. Infrared spectroscopy
  • D. Gas chromatography
Q. Which qualitative analysis technique uses a gel medium to separate ions based on their charge?
  • A. Gas Chromatography
  • B. Capillary Electrophoresis
  • C. High-Performance Liquid Chromatography
  • D. Mass Spectrometry
Q. Which reaction mechanism is primarily involved in the nucleophilic substitution of alkyl halides?
  • A. SN1
  • B. SN2
  • C. E1
  • D. E2
Q. Which reagent is commonly used in the qualitative analysis of halides to form a precipitate?
  • A. Barium chloride
  • B. Silver nitrate
  • C. Lead(II) nitrate
  • D. Calcium sulfate
Q. Which reagent is commonly used to confirm the presence of chloride ions in a solution?
  • A. Barium nitrate
  • B. Silver nitrate
  • C. Calcium hydroxide
  • D. Sodium sulfate
Q. Which reagent is commonly used to confirm the presence of sulfate ions in a qualitative analysis?
  • A. Barium chloride
  • B. Silver nitrate
  • C. Hydrochloric acid
  • D. Ammonium hydroxide
Q. Which spectroscopic technique is best suited for identifying functional groups in organic compounds?
  • A. Nuclear Magnetic Resonance (NMR)
  • B. Infrared (IR) Spectroscopy
  • C. Ultraviolet-Visible (UV-Vis) Spectroscopy
  • D. Mass Spectrometry
Q. Which spectroscopic technique is commonly used to identify metal ions in a sample?
  • A. Infrared Spectroscopy
  • B. Nuclear Magnetic Resonance
  • C. Atomic Absorption Spectroscopy
  • D. Mass Spectrometry
Q. Which spectroscopic technique is most effective for identifying functional groups in organic compounds?
  • A. NMR
  • B. UV-Vis
  • C. IR
  • D. Mass Spectrometry
Q. Which spectroscopy technique is best suited for identifying functional groups in organic ions?
  • A. Infrared Spectroscopy
  • B. Ultraviolet-Visible Spectroscopy
  • C. Nuclear Magnetic Resonance
  • D. Raman Spectroscopy
Q. Which spectroscopy technique is best suited for identifying functional groups in organic compounds?
  • A. Infrared Spectroscopy
  • B. Nuclear Magnetic Resonance
  • C. Mass Spectrometry
  • D. Raman Spectroscopy
Q. Which spectroscopy technique is most suitable for identifying functional groups in organic compounds?
  • A. UV-Vis Spectroscopy
  • B. NMR Spectroscopy
  • C. Mass Spectrometry
  • D. Infrared Spectroscopy
Q. Which technique is best suited for separating and identifying amino acids in a mixture?
  • A. Gas chromatography
  • B. High-performance liquid chromatography
  • C. Thin-layer chromatography
  • D. Capillary electrophoresis
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