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Abnormal Molecular Mass

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

ChemistryIf the observed molar mass of a solute is 1.6 times its true molar mass, what is the value of i?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 11EasyChemistryA substance undergoes 25% trimerisation. What is its approximate van’t Hoff factor, i?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 12MediumChemistryAn AB-type electrolyte undergoes 35% dissociation. What is its van’t Hoff factor, i?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 11EasyChemistryA solute has a true molar mass of 150 g mol−1, while the value measured by osmotic pressure is 100 g mol−1. What is i?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 12EasyChemistryWhen is the formula i = 1 + α(n − 1) appropriate?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 10EasyChemistryIf a solute has i = 0.625 and undergoes only dimerisation, how many times the true molar mass will be observed?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 13MediumChemistryAn A2B3 salt is 75% dissociated. What is its van’t Hoff factor, i?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 14MediumChemistryFor a substance, i = 2.0. Which example explains this value most simply?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 10EasyChemistryIn a solution, 0.05 mol of AB gives 0.075 mol effective particles after dissociation. What is the percentage dissociation of AB?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 12EasyChemistryWhich statement is correct when the value of i is less than one?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 10EasyChemistryIf the freezing-point depression of an AB2 salt is 2.4 times that of a normal non-electrolyte, what is the percentage dissociation?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 13MediumChemistryA solute is 60% dimerised and 40% remains normal. What is the van’t Hoff factor, i?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 12EasyChemistryIn a solution, AlCl₃ is 30% dissociated. What is the value of the van’t Hoff factor i?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 20MediumChemistryIf i = 3.4 and the solute can give four ions on complete dissociation, what is the percentage dissociation?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 20MediumChemistryA colligative-property experiment gives i = 0.5. Which statement is most correct?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 20EasyChemistryA substance dissociates in water according to A → B + C + D to the extent of 25%. What is the value of i?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 20MediumChemistryThe true molar mass of a substance is 90 g mol⁻¹, whereas its observed molar mass is 45 g mol⁻¹. What are i and the likely cause?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 20EasyChemistryWhy can the molar mass of a carboxylic acid be measured as higher in a non-polar solvent?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 20MediumChemistryIf a solution has i = 2.25 and the solute behaves like A₂B, what is the degree of dissociation?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 20MediumChemistryIf a solute associates according to 3A ⇌ A₃ to the extent of 45%, what is the value of i?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 20Hard