Qualitative Analysis of Ions - Competitive Exam Level

Q. In electrophoresis, what determines the direction of ion movement?
  • A. Molecular weight
  • B. Charge of the ion
  • C. Solubility
  • D. Temperature
Q. In flame tests, which color is produced by the presence of sodium ions?
  • A. Green
  • B. Red
  • C. Yellow
  • D. Blue
Q. In gas chromatography, what is the stationary phase typically made of?
  • A. Liquid
  • B. Solid
  • C. Gas
  • D. Plasma
Q. In infrared spectroscopy, which functional group is typically identified by a strong peak around 1700 cm-1?
  • A. Alcohol
  • B. Aldehyde
  • C. Carboxylic acid
  • D. Ketone
Q. What is the primary principle behind ion chromatography?
  • A. Size exclusion
  • B. Ion exchange
  • C. Affinity
  • D. Adsorption
Q. What is the primary purpose of using a mobile phase in chromatography?
  • A. To stabilize the stationary phase
  • B. To carry the sample through the stationary phase
  • C. To increase the temperature
  • D. To enhance detection sensitivity
Q. Which of the following ions can be detected using flame tests?
  • A. Sodium
  • B. Calcium
  • C. Barium
  • D. All of the above
Q. Which of the following ions can be identified using a flame photometer?
  • A. Calcium
  • B. Iron
  • C. Copper
  • D. Lead
Q. Which of the following ions would produce a white precipitate when treated with silver nitrate?
  • A. Sodium
  • B. Chloride
  • C. Potassium
  • D. Nitrate
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 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 is best for separating complex mixtures of organic compounds?
  • A. Gas Chromatography
  • B. Liquid Chromatography
  • C. Paper Chromatography
  • D. Capillary Electrophoresis
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 technique is best suited for the separation of charged particles in a solution?
  • A. Titration
  • B. Chromatography
  • C. Electrophoresis
  • D. Spectroscopy
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