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Class 12 Mcq

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

ChemistryWhich option correctly explains solubility and rate of dissolving?Class 12Chapter 01: Solutions3: SolubilityLevel 4EasyChemistryWhich statement correctly differentiates unsaturated and saturated solutions?Class 12Chapter 01: Solutions3: SolubilityLevel 3EasyChemistryIf dissolution of a gas in a liquid releases heat, in which direction will the equilibrium shift when the temperature is increased?Class 12Chapter 01: Solutions3: SolubilityLevel 6MediumChemistryWhy is the effect of pressure on solubility more visible for gases than for solids?Class 12Chapter 01: Solutions3: SolubilityLevel 5MediumChemistryWhat is the purpose of cooling a hot saturated solution in recrystallization?Class 12Chapter 01: Solutions3: SolubilityLevel 5EasyChemistryA solid's solubility increases greatly with temperature. Which method can be useful for its purification?Class 12Chapter 01: Solutions3: SolubilityLevel 5MediumChemistryIf a substance has very low solubility but not zero, what is more appropriate to call it?Class 12Chapter 01: Solutions3: SolubilityLevel 2EasyChemistryExtra solute added to a solution remains at the bottom. What does this indicate?Class 12Chapter 01: Solutions3: SolubilityLevel 2EasyChemistryWhich option gives the correct order when considering solubility in water?Class 12Chapter 01: Solutions3: SolubilityLevel 3EasyChemistryWhat is the correct effect of stirring on dissolving sugar in water?Class 12Chapter 01: Solutions3: SolubilityLevel 4EasyChemistryIf the particle size of a solid solute is made smaller, what is mainly affected?Class 12Chapter 01: Solutions3: SolubilityLevel 4EasyChemistryFor which type of solute is partial pressure most important in solubility?Class 12Chapter 01: Solutions3: SolubilityLevel 4EasyChemistryIf pressure is made three times, according to Henry's law, how many times will gas solubility become?Class 12Chapter 01: Solutions3: SolubilityLevel 5EasyChemistryIf the solubility of a gas is 0.02 mole fraction and pressure is doubled, what is the ideal new mole fraction?Class 12Chapter 01: Solutions3: SolubilityLevel 5MediumChemistryWhy can the availability of dissolved oxygen for fish decrease when water is heated?Class 12Chapter 01: Solutions3: SolubilityLevel 4EasyChemistryIn hilly regions, gas may escape quickly when a closed beverage bottle is opened. What is the reason?Class 12Chapter 01: Solutions3: SolubilityLevel 4EasyChemistryUnder which conditions is the aqueous solubility of a gas most likely to be lowest?Class 12Chapter 01: Solutions3: SolubilityLevel 4MediumChemistryWhat is the main reason oil and water do not mix well?Class 12Chapter 01: Solutions3: SolubilityLevel 3EasyChemistryWhat is the main reason for good solubility of salt in water?Class 12Chapter 01: Solutions3: SolubilityLevel 3EasyChemistryWhich option correctly shows the effect of nature of solute and solvent?Class 12Chapter 01: Solutions3: SolubilityLevel 3Easy

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