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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 solution should normally have an osmotic pressure of 2.00 atm, but its actual osmotic pressure is 3.20 atm. If the solute dissociates into two ions, what is the degree of dissociation?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 10Medium ChemistryFor a solute with i = 1.6, if it dissociates into three ions, what is the degree of dissociation?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 9Medium ChemistryA solute undergoes 70% tetramerisation. If the normal freezing-point depression is 0.80 K, what is the observed depression?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 14Hard ChemistryThe true molar mass of an AB₃ salt is 160 g mol⁻¹. If 25% dissociation occurs, what is its apparent molar mass?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 13Medium ChemistryIf the apparent molar mass of a solute is 1.25 times its true molar mass, what is the van’t Hoff factor and what does it indicate?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 9Medium ChemistryAn AX₃ salt is 20% dissociated. From 250 initial formula units, how many effective particles will be present?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 11Medium ChemistryA solution has van't Hoff factor i = 1.05. Which explanation is most appropriate?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 6Easy ChemistryIn a 0.40 mol kg⁻¹ solution, Kb = 0.50 K kg mol⁻¹ and the observed boiling-point elevation is 0.30 K. If the solute dissociates into two ions, what is the degree of dissociation?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 13Medium ChemistryAn unknown solute has i = 5. Which cause is most suitable?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 9Easy ChemistryA solute forms dimers and has i = 0.64. What is the degree of dimer association?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 13Medium ChemistryFor an AB electrolyte, 100 initial units produce 130 effective particles. What is the degree of dissociation?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 12Medium ChemistryThe apparent molar mass of a solute is 96 g mol−1. If i = 1.25, what is the true molar mass?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 10Easy ChemistryAssume 80% dissociation of AlCl₃. What is the value of i?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 11Easy ChemistryThe normal boiling-point elevation for a solute is 0.32 K. What is the observed elevation if 50% trimer association occurs?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 12Medium ChemistryIf the van’t Hoff factor of BaCl₂ is 2.5, what is the degree of dissociation?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 12Medium ChemistryTen percent of a solute forms dimers, 30% forms trimers, and 20% forms tetramers; the rest remains single. What is i?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 17Hard ChemistryA solution has i = 0.48. Which statement is most correct?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 9Easy ChemistryFor a solute, i = 5/4. If it dissociates into two ions, what is the degree of dissociation?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 10Easy ChemistryFor 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 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 9Easy ChemistryThe elevation in boiling point is 40% lower than the expected value. What is the apparent molar mass compared with the true mass?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 12Medium