Search questions
Use text search or combine filters to find exactly the questions you need.
Class 12 · Chemistry · Easy
→Among solutions of equal molality, which gives the maximum depression in freezing point if dissociation is complete?
Class 12 · Chemistry · Easy
→An acid dimerises in benzene due to hydrogen bonding. Which statement gives the correct effect?
Class 12 · Chemistry · Easy
→If the Kb method gives molar mass 40 g mol−1 while the true value is 58.5 g mol−1, what is the most suitable reason?
Class 12 · Chemistry · Easy
→Benzoic acid is nearly dimerised in benzene. How will its molar mass measured by freezing-point depression compare with its true molar mass?
Class 12 · Chemistry · Easy
→In an ideal dilute solution, the molar mass measured from osmotic pressure is half the true molar mass. What is the most suitable conclusion about the solute particles?
Class 12 · Chemistry · Easy
→A student calculates the molar mass of AlCl3 by assuming i = 1, although the actual i is 3.4. What is the apparent molar mass relative to the true molar mass?
Class 12 · Chemistry · Easy
→A solution has van't Hoff factor i = 1.05. Which explanation is most appropriate?
Class 12 · Chemistry · Easy
→An unknown solute has i = 5. Which cause is most suitable?
Class 12 · Chemistry · Hard
→Ten percent of a solute forms dimers, 30% forms trimers, and 20% forms tetramers; the rest remains single. What is i?
Class 12 · Chemistry · Easy
→A solution has i = 0.48. Which statement is most correct?
Class 12 · Chemistry · Easy
→For a 0.12 m solution, the normal freezing-point depression is 0.24 K and the observed depression is 0.60 K. What is i?
Class 12 · Chemistry · Medium
→The elevation in boiling point is 40% lower than the expected value. What is the apparent molar mass compared with the true mass?
Class 12 · Chemistry · Easy
→If a solute has i = 0.72 and true molar mass 144 g mol⁻¹, what is its apparent molar mass?
Class 12 · Chemistry · Easy
→An MCl₃ salt has i = 2.8. What is its apparent molar mass compared with its true molar mass?
Class 12 · Chemistry · Easy
→A solute forms trimers completely. What is the ratio of apparent molar mass to true molar mass?
Class 12 · Chemistry · Medium
→A student assumes i = 1 for CaCl2, although the actual i is 2.5. How will the apparent molar mass compare with the true molar mass?
Class 12 · Chemistry · Medium
→An AX₂ salt is 45% dissociated. From 200 initial formula units, how many effective particles will be present?
Class 12 · Chemistry · Easy
→A solution has i = 0.90. Which explanation is most appropriate?
Class 12 · Chemistry · Medium
→A solute dissociates into two ions and its colligative property is 30% higher than normal. What is the degree of dissociation?
Class 12 · Chemistry · Medium
→