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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।

ChemistryIf the observed molar mass is twice the true molar mass, what are the van’t Hoff factor i and the indicated behaviour?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 20MediumChemistryIn an experiment, the relative lowering of vapour pressure is 30% greater than the normal value. What should i be taken as?Class 12Chapter 01: Solutions4: Vapour PressureLevel 6EasyChemistryIf an AB electrolyte has a van’t Hoff factor i = 1.05, which conclusion is correct?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 20EasyChemistryAt the same concentration, which solution will show the highest colligative property if dissociation is complete?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 8MediumChemistryIf a solute has i = 1.6, how will its osmotic pressure compare with that of a normal solute of the same molality?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 5EasyChemistryA substance undergoes 20% trimerisation. What is its 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 20MediumChemistryIn a solution, 0.010 mol of solute produces 0.0075 mol of effective particles. What are i and the likely behaviour of the solute?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 20EasyChemistryIf i = 1.2 and the substance can dissociate into two ions, which conclusion is most appropriate?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 20MediumChemistryIf 0.02 mol of AB₂ dissociates completely, how many moles of effective particles are formed?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 5EasyChemistryIn a solution, half of solute A dimerises and half remains in its normal monomeric form. What is the van’t Hoff factor, i?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 20MediumChemistryFor an unknown solute, the boiling-point elevation is 1.5 times the expected value. If it is an AB-type electrolyte, what is the degree of dissociation?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 8MediumChemistryWhich statement gives the correct relation between i and particle number?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 5EasyChemistryAt the same molality, which solution gives the lowest osmotic pressure near the ideal limiting case?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 5EasyChemistryA colligative property doubles while the masses of solute and solvent remain the same. What is the most likely reason?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 5Easy