SOLUTION CHEMISTRY AND PHASE EQUILIBRIA MCQs

By: Prof. Dr. Fazal Rehman | Last updated: May 29, 2025

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1. : Which concentration term is helpful and used in respect of standard solutions?



2. : A 10% solution of sucrose contains 10g of sucrose in how much volume of the solution?



3. : The number of gram equivalents of the solute dissolved per dm³ of the solution is called



4. : Which is a not true criterion for an ideal solution?



5. : The number of moles of solute dissolved in 1000 gram of the solvent is called



6. : Which cation undergoes hydration with the least heat?



7. : One ppm solution of NaOH contains 1.00 mg of the solute per how much of the volume of the solution?



8. : How much amount of NaOH is needed to prepare 100 mL of 1N solution?



9. : One litre solution of NaOH contains 4.0 g of it. What will be the difference between molarity and normality? (Molar mass = 40)



10. : The molarity of a solution containing 4g NaOH per 500 mL of solution is (Mol mass = 40)



11. : Iso-osmotic solutions are those which have the same



12. : Which solution has highest normality?



13. : The number of moles of the solute dissolved per dm³ of the solution is called



14. : Solutions with components which obey Raoult’s law over the entire composition range are considered to be



15. : What systems perform effectively at the top solid temperature?



16. : The temperature at which two conjugate solutions change into one homogeneous solution is called



17. : Which solution of HCl will exactly neutralize 10 mL of 0.2 N NaOH?



18. : The law which relates the solubility of a gas to its pressure is called



19. : The number of formula weight of the solute dissolved per dm³ of the solution is called



20. : According to Henry’s law, the mole fraction of a gas (x) dissolved in a solvent is related to the pressure of the gas



21. : Sea water is converted into fresh water based upon the phenomenon of



22. : In dilute solutions the relative lowering of vapor pressure (Δp/p°) is related to osmotic pressure (π) by the relation



23. : Which is not affected by temperature change?



24. : At the same temperature, 0.1 M solution of urea is isotonic with



25. : Which expression is true?



26. : The relative lowering of vapor pressure of a solution on the addition of non-volatile solute



27. : What is the normality of 2.3M H₂SO₄ solution?



28. : Starting with pure NH₄Cl, the following is established NH₄Cl ⇄ NH₃ + HCl. The number of components in the system is



29. : The number of phases of a mixture of four gases enclosed in a container is



30. : In terms of number of phases (P), components (C) and degrees of freedom (F), the phase rule is expressed as



31. : The phase rule was deduced by which of the following?



32. : In a system, where the chemical potential of every component is the same for all phases, the equilibrium is said to be in



33. : In a one-component system the maximum number of phases that can coexist in equilibrium is



34. : The number of degrees of freedom and number of components for a system of sodium chloride solution in water containing undissolved salt, in equilibrium with water vapor, are



35. : The maximum degree of freedom for a pure substance under equilibrium conditions is



36. : The temperature at which the vapor pressure becomes equal to external pressure is called



37. : 30 mL of an acid solution is neutralized by 15 mL of 0.2N base. The strength of acid solution is



38. : What is the pH of aqueous solution of sodium acetate solution?



39. : The pH of the blood is maintained by which buffers



40. : For a single-component, maximum degree of freedom system is:



41. : Which is the strongest acid?



42. : Which concentration term is helpful and used for very dilute solutions?



43. : The number of degrees of freedom at the triple point for the water system is



44. : Which is partially miscible?



45. : The molarity of 4% NaOH solution is (Mol wt = 40)



46. : The property which do not depend on the amount of substance are called



47. : Beckman thermometer reads up to



48. : Hydrolysis of sodium acetate produces



49. : A 10% solution of glucose freezes at



50. : Sulfur can exist in



51. : A 10% solution of glucose contains 1 g per



 

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