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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।

ChemistryA salt MCl₂ has i = 2.4. If complete dissociation gives three ions, what is the apparent molar mass as a fraction of the true molar mass?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 11Easy ChemistryIf Kb = 0.80 K kg mol⁻¹, m = 0.25 mol kg⁻¹, and the observed boiling-point elevation is 0.10 K, what is i and what does it indicate?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 12Medium ChemistryThe osmotic pressure of a 0.05 M electrolyte at 300 K is 2.46 atm. Take R = 0.082 L atm mol⁻¹ K⁻¹. What is i?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 12Medium ChemistryThirty-six percent of solute A forms A₃. What is the value of i?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 12Medium ChemistryThe lowering of vapour pressure is 1.6 times the normal value. If the solute dissociates into two ions, what is the degree of dissociation?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 12Medium ChemistryA colligative experiment gives an apparent molar mass of 240 g mol⁻¹, while the normal molar mass is 120 g mol⁻¹. Which conclusion is most correct?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 11Easy ChemistryA solution has i = 1.9. If the solute is AB₃, what is the degree of dissociation?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 12Medium ChemistryA solute forms pentamers completely. What is the ratio of apparent molar mass to true molar mass?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 11Easy ChemistryA colligative property is 45% higher than its normal value. If the solute is AB₂, what is the degree of dissociation?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 12Medium ChemistryA salt MX₃ is 70% dissociated. What fraction of its true molar mass is its apparent molar mass?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 12Medium ChemistryAn acid has an apparent molar mass of 150 g mol⁻¹ in benzene, while its true molar mass is 90 g mol⁻¹. If only dimers form, what is the degree of association?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 12Medium ChemistryFor a 0.20 mol kg⁻¹ solution, Kf = 1.5 K kg mol⁻¹ and the observed freezing-point depression is 0.45 K. If the solute dissociates into two ions, what is the degree of dissociation?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 13Medium ChemistryA solute has i = 0.70 and forms only tetramers. What is the approximate degree of association?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 12Medium ChemistryA solute forms 50% dimers and 20% trimers; the remaining particles stay single. From 100 initial particles, how many effective particles are present?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 14Hard ChemistryAn electrolyte XY₂ has an apparent molar mass equal to 0.625 times its true molar mass. What is the degree of dissociation?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 12Medium ChemistryThe observed osmotic pressure is 0.80 times the normal value. If the solute forms dimers, what is the degree of association?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 12Medium ChemistryAn A₂B salt is 65% dissociated. What is the van’t Hoff factor?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 12Medium ChemistryForty percent of a solute’s particles form trimers. If its normal molar mass is M, what is the apparent molar mass?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 13Hard ChemistryThe true molar mass of a solute is 180 g mol−1 and i = 0.6. What is its apparent molar mass?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 11Easy ChemistryIf the apparent molar mass of a solute is M/3, what is the value of i and what does it indicate?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 11Easy