Ionic Equilibrium | Physical Chemistry | GPAT Mock Test

Quiz Introduction

Welcome to this specialized mock test on Ionic Equilibrium, a crucial topic in Physical Chemistry for the GPAT examination. This quiz is meticulously designed to test your understanding of the fundamental principles of conductivity, including specific conductance, equivalent and molar conductance, mobility of ions, and the theories that govern them. With 25 carefully curated multiple-choice questions, this test simulates the GPAT pattern to help you assess your preparation, identify areas for improvement, and build confidence. After submitting your answers, you will receive your score and a detailed review of each question. For your convenience and future revision, you can also download all the questions along with their correct answers in a PDF format. Good luck!

1. The unit of specific conductance (conductivity) is:

2. On dilution, the specific conductance of a solution of a weak electrolyte:

3. Kohlrausch’s law of independent migration of ions is applicable to:

4. The cell constant of a conductivity cell is defined as:

5. The equivalent conductance of a strong electrolyte on dilution:

6. The relationship between molar conductance (Λm) and specific conductance (κ) for a solution of concentration C (in mol/L) is:

7. Which of the following has the highest ionic mobility in an aqueous solution at infinite dilution?

8. The exceptionally high ionic mobility of H⁺ ions in water is explained by the:

9. The degree of dissociation (α) of a weak electrolyte is related to its molar conductivity (Λm) and limiting molar conductivity (Λ°m) by the expression:

10. The conductance of a solution is measured using an AC source instead of a DC source to:

11. Walden’s rule states that for a given ion, the product of its limiting ionic conductance and the viscosity of the solvent is:

12. The specific conductance (κ) is related to resistance (R) and cell constant (G*) by the equation:

13. The Debye-Hückel-Onsager equation describes the variation of:

14. The unit of ionic mobility is:

15. The hindrance to the movement of an ion due to the oppositely charged ionic atmosphere is known as the:

16. Equivalent conductance is the conducting power of all the ions produced by dissolving:

17. Which of the following is NOT a strong electrolyte?

18. The drag on an ion’s movement caused by the solvent molecules moving in the opposite direction is known as the:

19. If the specific conductance of a 0.1 N KCl solution is 0.012 S cm⁻¹, its equivalent conductance is:

20. As temperature increases, the conductivity of an electrolytic solution:

21. The instrument commonly used for the precise measurement of the conductance of a solution is a:

22. The limiting molar conductivity of NH₄OH can be calculated using the values of Λ°m for:

23. Ostwald’s dilution law is applicable only to:

24. The sum of the transport numbers of the cation and the anion in a given electrolytic solution is always:

25. Which factor decreases the conductivity of an electrolytic solution?