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

ChemistryWater contains 9 ppm dissolved oxygen. What is the approximate mass of oxygen in 500 mL water?Class 11Chapter 01: SolutionsLevel 6MediumChemistryA 2 L solution has solute concentration 300 mg per litre. What is the approximate ppm if the solution is dilute and aqueous?Class 11Chapter 01: SolutionsLevel 5EasyChemistryA water sample has calcium ion concentration 40 ppm. What mass of calcium ions is present in 5 L of the sample?Class 11Some Basic Concepts of ChemistryMole concept and molar massLevel 3EasyChemistry1 L water contains 0.05 g lead ions. Assuming a very dilute solution what is the concentration in ppm?Class 11Some Basic Concepts of ChemistryMole concept and molar massLevel 3EasyChemistryA solution contains 50 mg solute and the mass of solution is 2 kg. What is the ppm?Class 11Some Basic Concepts of ChemistryMole concept and molar massLevel 3EasyChemistryWhat is 0.075 percent expressed in ppm?Class 11Some Basic Concepts of ChemistryMole concept and molar massLevel 2EasyChemistryWhat is 500 ppm expressed as mass percent?Class 11Some Basic Concepts of ChemistryMole concept and molar massLevel 2EasyChemistryA solution contains 0.02 g solute in 400 g solution. What is its concentration in ppm?Class 11Chapter 01: SolutionsLevel 3EasyChemistryFluoride concentration in drinking water is 1.5 ppm. What is the approximate mass of fluoride in 2 L water if density of water is taken as 1 g per mL?Class 11Chapter 01: SolutionsLevel 4MediumChemistryA 1 kg solution contains 0.002 g solute. What is the concentration in ppm?Class 11Chapter 01: SolutionsLevel 4EasyChemistry12 mg impurity is present in 3 L water. Assuming a very dilute solution, what is the concentration in ppm?Class 11Chapter 01: SolutionsLevel 4EasyChemistry5 mg of fluoride ions are present in 2 kg of water. What is the concentration in parts per million?Class 11Chapter 01: SolutionsLevel 4EasyChemistryIn which situation is ppm most suitable?Class 11Chapter 01: SolutionsLevel 3EasyChemistryA water sample has 10 mg impurity in 1 kg water. Approximately what is the concentration in ppm?Class 11Chapter 01: SolutionsLevel 6EasyChemistryWhich term is good for expressing a very small impurity in salty water?Class 11Chapter 01: SolutionsLevel 5EasyChemistryWhat is the general meaning of ppm?Class 11Chapter 01: SolutionsLevel 3EasyChemistryWhich unit is especially useful for very dilute solutions?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 4MediumChemistryWhich term can be used to express very small amounts such as fluoride in water?Class 11Chapter 01: SolutionsLevel 3EasyChemistryParts per million concentration is useful for which type of solutions?Class 11Chapter 01: SolutionsLevel 3Easy