Search questions
Use text search or combine filters to find exactly the questions you need.
Class 11 · Chemistry
→An electrolyte X₂Y₃ gives how many ions on complete dissociation, and what is i at 50% dissociation?
Class 12 · Chemistry
→The observed molar mass of an acid in benzene is 180 g mol⁻¹, whereas its true molar mass is 120 g mol⁻¹. If only dimerisation occurs, what is the degree of dimerisation?
Class 12 · Chemistry
→An AB₃ electrolyte is 40% dissociated. Compared with a glucose solution of the same molality, how many times greater will its freezing-point depression be?
Class 12 · Chemistry
→In a solution, solute A undergoes 30% tetramerisation, meaning that four molecules combine to form one particle. What is the value of i?
Class 12 · Chemistry
→The true molar mass of a solute is 100 g mol⁻¹ and its van’t Hoff factor is 1.25. What is the observed molar mass?
Class 12 · Chemistry
→A substance has a van’t Hoff factor, i = 0.6, and undergoes only dimerisation. What is the degree of dimerisation?
Class 12 · Chemistry
→If i = 2.8 and the solute can give three ions on complete dissociation, what is the approximate degree of dissociation?
Class 12 · Chemistry
→Which statement correctly explains the abnormal molar mass of carboxylic acids in benzene?
Class 12 · Chemistry
→Which substance is more likely to show abnormal molar mass in water because of dissociation?
Class 12 · Chemistry
→Under identical conditions, a solute has an osmotic pressure equal to 0.75 times the expected value. How is its observed molar mass related to the true molar mass?
Class 12 · Chemistry
→An AB₄ salt is 20% dissociated. What is the value of the van’t Hoff factor i?
Class 12 · Chemistry
→If the van’t Hoff factor i for an electrolyte is less than its ideal maximum, what is the best possible reason?
Class 12 · Chemistry
→A solute undergoes 60% trimerisation, meaning that three molecules combine to form one particle. What is the value of the van’t Hoff factor i?
Class 12 · Chemistry
→A colligative experiment gives i = 1. Which conclusion is safest?
Class 12 · Chemistry
→A solute X₂ breaks in solution according to X₂ → 2X to the extent of 30%. What is i?
Class 12 · Chemistry
→If the observed molar mass of a substance is 0.4 times its true molar mass, what is i?
Class 12 · Chemistry
→A substance has i = 0.25. Which complete association does this best match?
Class 12 · Chemistry
→In the osmotic-pressure method, from which ratio can i be understood directly?
Class 12 · Chemistry
→K₂SO₄ is assumed to be 50% dissociated in a solution. What is the van’t Hoff factor i?
Class 12 · Chemistry
→