Which one of the following solute dissolves faster in water?
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Salt
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Sugar
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Baking powder
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Chalk powder
A
Correct answer
Explanation
Salt (NaCl) dissolves fastest in water because it's an ionic compound that readily dissociates into Na+ and Cl- ions when in contact with water. Sugar takes longer to dissolve, baking powder is a mixture that reacts before fully dissolving, and chalk powder is mostly insoluble in water. The ionic nature of salt makes it highly soluble with quick dissolution kinetics.