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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।

ChemistryWhat is the correct meaning of van’t Hoff factor for colligative properties?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 12Easy ChemistryWhich is the correct relation between normal molecular mass and observed molecular mass?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 12Medium ChemistryIf van’t Hoff factor i < 1, what does it indicate?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 ChemistryVan’t Hoff factor i is used for which correction?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 12Easy ChemistryWhen solute particles associate to form larger groups, how is the observed molecular mass affected?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 12Easy ChemistryWhat happens to the observed molecular mass when solute particles dissociate into more particles in solution?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 12Easy ChemistryWhen is abnormal molecular mass usually observed?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 12Easy ChemistryWhat is the best exam strategy while determining the molar mass of an unknown solute?Class 12Chapter 01: Solutions6: Molar Mass DeterminationLevel 12Medium ChemistryIf the relative lowering of vapour pressure is 0.02 and solute moles are very small compared with solvent moles, what is the approximate mole fraction of solute?Class 12Chapter 01: Solutions4: Vapour PressureLevel 12Easy ChemistryIn molar mass determination, the condition of a non-volatile solute is most directly connected with which method?Class 12Chapter 01: Solutions4: Vapour PressureLevel 12Easy ChemistryIf a substance repeatedly gives a higher molar mass by the cryoscopic method, which test idea is useful?Class 12Chapter 01: Solutions7: Abnormal Molecular MassLevel 12Medium ChemistryA solute has true molar mass 120 g mol−1 and i = 1.5. What is the apparent molar mass?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