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

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 an AB electrolyte has a van’t Hoff factor i = 1.05, which conclusion is correct?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 20Easy ChemistryA solute undergoes 80% dimerisation. If its true molar mass is 100 g mol⁻¹, what will be its observed molar mass?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 20Medium ChemistryA solution shows i = 1.9. Which situation matches this value?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 11Easy ChemistryIf an AB₃-type electrolyte is 50% dissociated, what is the van’t Hoff factor (i)?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 12Medium ChemistryIf i = 0.7, what is the most suitable conclusion?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 11Easy ChemistryIf i = 1.4, what is the most suitable conclusion?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 11Easy ChemistryFor nonelectrolytes, what is i usually taken as if there is no association?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 12Easy ChemistryIf van’t Hoff factor i > 1, which situation is generally present?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 12Easy ChemistryA student uses 27 K instead of 27 °C in the osmotic-pressure method. How will the calculated molar mass compare with the correct value?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 12Easy ChemistryIf the value of K_b is mistakenly taken as double, how will the molar mass calculated from boiling-point elevation change?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 12Easy ChemistryWhy is comparing results from different colligative properties useful for accurately determining the molar mass of an unknown solute?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 12Medium ChemistryWhy does the reliability of simple colligative formulas decrease if the solution is too concentrated during molar mass determination?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 12Medium ChemistryThree grams of a solute dissolved in 100 g of solvent produces a freezing-point depression of 0.3 K. What depression will be produced by 6 g of the same solute in 100 g of the same solvent?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 19Medium ChemistryIn molar-mass determination, under which condition will the value calculated from M = wRT/(πV) be higher than the true value?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18Hard ChemistryIf osmotic pressure increases due to factor (i), what is the corrected form of the osmotic-pressure relation?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18Hard ChemistryWhat problem occurs in molar-mass determination by relative lowering of vapour pressure if the solute is also volatile?Class 12Chapter 01: Solutions4: Vapour PressureLevel 18Hard ChemistryIf the solute sample contains an impurity during molar-mass determination, what is the usual effect?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18Medium ChemistryWhat is the osmotic pressure of 0.01 mol of a non-electrolyte solute in 1 L of solution at 300 K? Take R = 0.082 L atm K⁻¹ mol⁻¹.Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 18Medium 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