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7 Abnormal Molecular Mass

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

ChemistryA freezing-point depression experiment gives i = 2.7 for an unknown solute. If it is of type AB₂, what is the approximate degree of dissociation?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 13MediumChemistryFor a solution, i = 0.70. Which statement is correct?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 7EasyChemistryAn AB electrolyte is 40% dissociated. From 100 initial formula units, how many effective particles will be present?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 12MediumChemistryTwenty percent of a solute’s particles form dimers and 80% remain as single particles. Starting with 100 particles, what is the effective number of particles?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 12MediumChemistryIn which case will the apparent molar mass be the highest?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 10MediumChemistryIn which solution is the apparent molar mass most likely to be the lowest?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 10MediumChemistryA solute A has 25% of its particles forming A₄. What is the value of i?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 13MediumChemistryA solute should normally show a freezing-point depression of 0.48 K, but the observed value is 0.24 K. If it forms only dimers, what is the degree of association?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 13MediumChemistryIf AlCl₃ is 50% dissociated, what is its van’t Hoff factor?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 11MediumChemistryIf CaCl₂ undergoes 80% dissociation in a solution, what is the value of i?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 11MediumChemistryIn a solution, 30% of the solute molecules form dimers. What is the value of i?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 11MediumChemistryA student finds that the apparent molar mass of a salt is less than its true molar mass. Which conclusion can safely be drawn?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 9EasyChemistryA solute forms tetramers. If the degree of association is 50%, what is the value of i?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 13MediumChemistryA solute has i = 3.4 and is an electrolyte of type XY₄. What is its degree of dissociation?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 13MediumChemistryThe relative lowering of vapour pressure of a non-volatile solute is lower than expected. Which conclusion is most correct?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 9EasyChemistryAn AB₂ salt has i = 2.2. What is its degree of dissociation?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 12MediumChemistryThe apparent molar mass of a solute is 0.40 times its true molar mass. If it dissociates into three ions, what is the degree of dissociation?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 15HardChemistryIf K_b = 0.52 K kg mol⁻¹, m = 0.50 mol kg⁻¹, and observed ΔT_b = 0.39 K, what is i?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 12MediumChemistryA 0.01 M solution has an osmotic pressure of 0.369 atm at 27°C. Taking R = 0.082 L atm mol⁻¹ K⁻¹, what is the approximate value of i?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 14HardChemistryFor a solute, elevation in boiling point is lower than the normal expected value. What is the most likely reason?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 9Easy