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Qualitative Analysis of Ions - Problem Set

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Q. What is the main principle behind the use of UV-Vis spectroscopy in qualitative analysis?
  • A. It measures the mass of a sample
  • B. It detects the presence of specific ions based on their absorbance
  • C. It separates components based on their charge
  • D. It identifies compounds based on their melting points
Q. What is the purpose of using a buffer solution in electrophoresis?
  • A. To increase the conductivity of the solution
  • B. To maintain a constant pH during the separation
  • C. To enhance the visibility of the bands
  • D. To prevent overheating of the gel
Q. What is the role of a pH indicator in a titration?
  • A. To increase the reaction rate
  • B. To provide a color change at the endpoint
  • C. To stabilize the solution
  • D. To dilute the reactants
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 of the following ions can be detected using a silver nitrate test?
  • A. Chloride ions
  • B. Sulfate ions
  • C. Nitrate ions
  • D. Phosphate ions
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 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
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The Qualitative Analysis of Ions – Problem Set section provides a comprehensive collection of graded practice problems designed to reinforce conceptual understanding, logical reasoning, and systematic analysis skills. This module is suitable for Class 11–12 students, undergraduate learners, and competitive exam aspirants, helping them convert theory into exam-ready problem-solving ability.

In this section, you will practice:

  • Basic identification problems based on group tests and confirmatory reactions

  • Cation and anion analysis questions with observation-based reasoning

  • Mixed-salt and multi-step problems

  • Ksp, pH, and equilibrium-based reasoning problems

  • Complex ion formation and interference-related questions

  • Assertion–Reason, MCQs, and multi-correct problems

  • Case-based and reaction-sequence questions

  • Previous Year Question (PYQ)–pattern problems with detailed solutions

Problems are arranged from easy to advanced level, enabling progressive skill development and strong exam preparedness.

Regular practice with this problem set will help students identify patterns, avoid common traps, and solve qualitative analysis questions with confidence and accuracy in school exams, UG assessments, and competitive tests.

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