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Class 11 Mcq

Class 11 Chemistry के इस tag से जुड़े questions। हर question के साथ chapter, topic, level और difficulty दी गई है।

ChemistryIn which situation is molality preferred over molarity?Class 11Chapter 01: SolutionsLevel 4MediumChemistryWhich option correctly represents an increasing concentration trend?Class 11Chapter 01: SolutionsLevel 2EasyChemistryWhat is the mole fraction of solute in a solution containing 0.25 mole solute and 0.75 mole solvent?Class 11Chapter 01: SolutionsLevel 2EasyChemistry1.5 moles of solute are present in 0.5 kg solvent. What is the molality?Class 11Chapter 01: SolutionsLevel 3EasyChemistryWhat should be the total volume to prepare a 2 M solution using 0.4 mole solute?Class 11Chapter 01: SolutionsLevel 3EasyChemistryHow many moles of solute are present in 250 mL of a 2 M solution?Class 11Chapter 01: SolutionsLevel 3EasyChemistryIf 0.1 mole sodium chloride is dissolved in 900 g water, what is the molality?Class 11Chapter 01: SolutionsLevel 3EasyChemistryIf 4 mg solute is present in 1000 g water, what is the concentration in parts per million?Class 11Chapter 01: SolutionsLevel 4MediumChemistry0.5 mole solute is present in 250 g solvent. What is the molality?Class 11Chapter 01: SolutionsLevel 3EasyChemistryWhat is the mole fraction of water in a mixture of 36 g water and 46 g ethanol?Class 11Chapter 01: SolutionsLevel 4MediumChemistryWhat is the mole fraction of ethanol in a mixture of 46 g ethanol and 54 g water? Molar masses are 46 and 18 g/mol respectively.Class 11Chapter 01: SolutionsLevel 4MediumChemistry0.2 mole urea is dissolved in 200 g water. What is the molality?Class 11Chapter 01: SolutionsLevel 3EasyChemistry5.85 g sodium chloride is dissolved to make 1 L of solution. Its molar mass is 58.5 g/mol. What is the molarity?Class 11Chapter 01: SolutionsLevel 3EasyChemistryIn which concentration term are moles of both solute and solvent useful?Class 11Chapter 01: SolutionsLevel 2EasyChemistryWhile preparing a solution in the laboratory, for molarity the final volume is made up to what?Class 11Chapter 01: SolutionsLevel 2EasyChemistryIf two solutions have the same volume, which has the lower concentration?Class 11Chapter 01: SolutionsLevel 2EasyChemistryWhat is the process of decreasing the concentration of a solution called?Class 11Chapter 01: SolutionsLevel 1EasyChemistryIf the mole fraction of a component is 0.25, what does it mean?Class 11Chapter 01: SolutionsLevel 2EasyChemistryWhich statement correctly uses molarity?Class 11Chapter 01: SolutionsLevel 1EasyChemistryWhich concentration method is often seen as a percentage on labels of medicines or solutions in daily life?Class 11Chapter 01: SolutionsLevel 2Easy

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