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Abnormal Molar Mass

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

ChemistryIf the actual molar mass is 90 g mol⁻¹ and the observed molar mass is 45 g mol⁻¹, what is i?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 15Medium ChemistryThe concept of abnormal molar mass is most closely related to which type of properties?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 13Easy ChemistryIf the normal molar mass is 60 g mol⁻¹ and the van’t Hoff factor is 2, what is the observed molar mass?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 15Medium ChemistryWhen the number of solute particles changes from the expected value, how may the molar mass appear?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 13Easy ChemistryWhich option gives the correct reason for abnormal molar mass?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 13Easy ChemistryIf i = 1.25, which process does it most likely indicate?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 12Easy ChemistryIf the normal molecular mass is 60 and the observed molecular mass is 120, what is the value of i?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 12Easy ChemistryA solution has a van’t Hoff factor i = 1.8. If the solute can dissociate into two ions, what is the nature of its dissociation?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 18Hard ChemistryIf the apparent molar mass of a solute approaches its true molar mass on dilution, what does this indicate?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18Hard ChemistryDue to association, the apparent molar mass is 180 g mol⁻¹, while the true molar mass is 90 g mol⁻¹. What is the van’t Hoff factor?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 18Medium ChemistryIf a solute completely dissociates into three ions in solution, how will its apparent molar mass compare with its true molar mass?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 18Medium ChemistryA solute has a true molar mass of 60 g mol⁻¹, but freezing-point depression gives an apparent molar mass of 30 g mol⁻¹. What is the van’t Hoff factor?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 18Medium ChemistryIf the molar mass of an acid in benzene, determined from freezing-point depression, is nearly double the expected value, what does it indicate?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 18Medium ChemistryIn the freezing-point depression method, in which situation will the calculated molar mass of a solute be higher than its true value?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18Medium ChemistryThe molar mass of a solute determined by osmotic pressure is lower than its normal value. What is the most suitable reason?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18Medium ChemistryIn molar mass determination, if the observed van’t Hoff factor is i < 1, what is the most suitable conclusion?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18Medium ChemistryA solute of concentration 0.02 M has an osmotic pressure of 0.984 atm at 300 K. If R = 0.082 L atm mol⁻¹ K⁻¹, what is the van’t Hoff factor (i), and what does it indicate about the solute’s behaviour?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Hard ChemistryA solute has a van’t Hoff factor i = 2.25 and an observed molar mass of 64 g mol⁻¹. What is its true molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Hard ChemistryIf the true molar mass of a solute is 240 g mol⁻¹ and the colligative method gives an observed molar mass of 160 g mol⁻¹, what are i and the probable behaviour of the solute?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Hard ChemistryIf a 0.3 m solution has i = 0.6, what molality would appear from a colligative property if the van’t Hoff factor correction were ignored?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 17Medium