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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।

ChemistryIn the vapour-pressure-lowering method, the relative lowering for a dilute solution is approximately equal to what?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 18Medium ChemistryIf the solute is non-volatile, which law is useful for determining molar mass from lowering of vapour pressure?Class 12Chapter 01: Solutions4: Vapour PressureLevel 18Easy ChemistryWhich colligative property can be measured at room temperature for molar mass determination?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 18Easy ChemistryIf two solutions are isotonic, which statement about them is correct?Class 12Chapter 01: Solutions5: Colligative PropertiesLevel 18Easy ChemistryWhich relation gives the number of moles from mass during molar mass determination?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18Easy ChemistryIf the mass of solvent is given in grams, into which unit should it be converted before calculating molality?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18Easy ChemistryIn molar-mass determination using boiling-point elevation, K₍b₎ is a property of which substance?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18Easy ChemistryIn molar-mass determination using freezing-point depression, K₍f₎ is a property of which substance?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18Easy ChemistryIn a solution, 0.5 g of solute corresponds to 0.005 mol. What is the molar mass of the solute?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18Easy ChemistryA nonelectrolyte solution has a boiling-point elevation, \(\Delta T_b=0.052\,K\), and the ebullioscopic constant is \(K_b=0.52\,K\,kg\,mol^{-1}\). What is the molality of the solution?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18Easy ChemistryA nonelectrolyte solution has a freezing-point depression, \(\Delta T_f=0.186\,K\), and the cryoscopic constant is \(K_f=1.86\,K\,kg\,mol^{-1}\). What is the molality of the solution?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18Easy ChemistryIf 2 g of a solute contains 0.02 mol, what is its molar mass?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18Easy ChemistryIf 1 g of a solute dissolved in 100 g of solvent forms a 0.1 m solution, what is the molar mass of the solute?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18Easy ChemistryWhy may acetic acid show a higher observed molar mass in benzene?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18Easy ChemistryWhy may the observed molar mass of NaCl be lower than its true molar mass during molar mass determination?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18Easy ChemistryWhich solute will show normal colligative behaviour during molar mass determination?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18Easy ChemistryIf the normal molar mass is 60 g mol⁻¹ and the observed molar mass is 120 g mol⁻¹, what is the van’t Hoff factor i?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 18Easy ChemistryIf the observed molar mass of a substance is 60 g mol⁻¹ and its normal molar mass is 120 g mol⁻¹, what is the van’t Hoff factor i?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 18Easy ChemistryIf the temperature is 27°C, what is its approximate value in kelvin?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18Easy ChemistryIf w, R, T, π, and V are known in the osmotic-pressure method, how is M calculated?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 18Easy