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Chapter 01 Solutions

Class 12 Chemistry के इस tag से जुड़े questions। हर question के साथ chapter, topic, level और difficulty दी गई है।

ChemistryIf a CaCl₂ solution has i = 2.5, what is the degree of dissociation?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 20MediumChemistryFor 25% dissociation of an AB electrolyte, what fraction of the true molar mass will be observed?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 20MediumChemistryA substance has i = 0.4 and undergoes only m-fold association. If the association is complete, what is the value of m?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 20HardChemistryFor a 1:2 electrolyte, the observed molar mass is 5/8 of the true molar mass. What is the degree of dissociation?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 20HardChemistryIf the osmotic pressure of a solution is 25% less than the expected ideal value, how will the observed molar mass compare with the true molar mass?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 20MediumChemistryThe 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 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 20HardChemistryAn 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 12Chapter 01: Solutions5: Colligative PropertiesLevel 9MediumChemistryIn a solution, solute A undergoes 30% tetramerisation, meaning that four molecules combine to form one particle. What is the value of i?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 20HardChemistryThe 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 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 19MediumChemistryA substance has a van’t Hoff factor, i = 0.6, and undergoes only dimerisation. What is the degree of dimerisation?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 19HardChemistryIf i = 2.8 and the solute can give three ions on complete dissociation, what is the approximate degree of dissociation?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 19HardChemistryWhich statement correctly explains the abnormal molar mass of carboxylic acids in benzene?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 19HardChemistryWhich substance is more likely to show abnormal molar mass in water because of dissociation?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 19MediumChemistryUnder 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 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 19HardChemistryAn AB₄ salt is 20% dissociated. What is the value of the van’t Hoff factor i?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 19HardChemistryIf the van’t Hoff factor i for an electrolyte is less than its ideal maximum, what is the best possible reason?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 19MediumChemistryA 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 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 19HardChemistryA colligative experiment gives i = 1. Which conclusion is safest?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 4EasyChemistryA solute X₂ breaks in solution according to X₂ → 2X to the extent of 30%. What is i?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 8EasyChemistryIf the observed molar mass of a substance is 0.4 times its true molar mass, what is i?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 6Easy