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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 student sees i < 1 and writes dissociation. What is the correct correction?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 1Easy ChemistryA 1:3 electrolyte is 50% dissociated. What is its van’t Hoff factor?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 2Medium ChemistryIf the osmotic pressure of a solute is 20% lower than the normal value, what are i and the likely cause?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 2Easy ChemistryFor 25% dissociation of an AB₃ salt, what fraction of the true molar mass will be its observed molar mass?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 3Medium ChemistryWhich option gives the correct relation for m-fold association?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 1Easy ChemistryIn a solution, 0.01 mol of A₂B₃ undergoes 60% dissociation. How many moles of effective particles will be present?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 3Medium ChemistryIf 60% of a solute remains as normal molecules and 40% of it dimerises, what is the van’t Hoff factor?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 2Medium ChemistryFor a substance, the van’t Hoff factor is 3.25, and one formula unit can produce five ions on complete dissociation. What is the degree of dissociation?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 2Medium ChemistryIf a solute is normally undissociated and does not undergo association, what should the van’t Hoff factor be by all four colligative methods?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 1Easy ChemistryFor an AB2 salt, if i = 2.0, what is the percentage dissociation?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 12Medium ChemistryThe molar mass determined from osmotic pressure is greater than the true molar mass. Which phenomenon does this indicate?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 10Easy ChemistryIf a solute has i = 1.25, how much higher will its colligative effect be than the normal value?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 12Easy ChemistryIn a solution, BaCl2 is 50% dissociated. What is its van’t Hoff factor, i?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 12Medium ChemistryIf the molar mass obtained by osmotic pressure is lower than the true molar mass, which conclusion is most suitable?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 10Easy ChemistryAn A3B salt is 30% dissociated. What is its van’t Hoff factor, i?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 12Medium ChemistryIf i = 0.8 and only dimerisation occurs, what fraction of the solute remains as normal molecules?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 12Medium ChemistryAmong equal-molality solutions, which will have the lowest freezing point assuming complete dissociation?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 12Medium ChemistryA substance has a true molar mass of 72 g mol−1 and i = 2.4. What is its observed molar mass?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 11Easy ChemistryWhich option gives the correct limiting value of i for complete dimerisation?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 10Easy ChemistryIf a solute has i = 2.2 and can produce three ions, what is the percentage dissociation?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 12Medium