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Class 12 · Chemistry
→If the solubility curve of a solid is almost horizontal, what can be said about its solubility when temperature changes?
Class 12 · Chemistry
→In which case is the solubility of an ionic solid in water more likely to increase?
Class 12 · Chemistry
→Oil dissolves poorly in water but better in an organic solvent. Which principle explains this?
Class 12 · Chemistry
→What is the deeper reason for the good solubility of salt in water?
Class 12 · Chemistry
→If two solids have the same solubility but one is powdered, in what way will the powdered solid be ahead?
Class 12 · Chemistry
→What is the main effect of grinding sugar into fine powder on its dissolving in water?
Class 12 · Chemistry
→Which option gives the most accurate difference between solubility and rate of dissolving?
Class 12 · Chemistry
→If both pressure and temperature change for gas solubility, what is the correct exam strategy?
Class 12 · Chemistry
→Under which condition is the solubility of a gas in a liquid most likely to be highest?
Class 12 · Chemistry
→Why can the amount of dissolved oxygen be lower in warm water?
Class 12 · Chemistry
→In recrystallization, if an impurity is highly soluble even in the cold solvent, where will it mostly remain?
Class 12 · Chemistry
→45 g solute forms a saturated solution in 150 g water. How much solute is required for saturation in 75 g water at the same temperature?
Class 12 · Chemistry
→A solution contains 80 g water and 28 g solute. If the solubility is 40 g per 100 g water at the same temperature, what type of solution is it?
Class 12 · Chemistry
→If 36 g solute dissolves up to saturation in 120 g water, what is the solubility per 100 g water?
Class 12 · Chemistry
→The solubility of a solid is 30 g per 100 g water. How much solute is needed to make a saturated solution in 250 g water?
Class 12 · Chemistry
→Which statement correctly explains a supersaturated solution?
Class 12 · Chemistry
→A solution contains 55 g solute in 100 g water while normal solubility is 45 g. What may happen when a small crystal is added?
Class 12 · Chemistry
→The solubility of a solid decreases as temperature increases. This is more consistent with which type of dissolution?
Class 12 · Chemistry
→Why can it be dangerous for divers to come up suddenly from deep water?
Class 12 · Chemistry
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