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Which of the following does not dissolve in water even after long stirring?
A metal piece of mass 54 g has a volume of 20 cm³. What is its density?
Three liquids X, Y and Z that do not mix are poured into a jar and settle as shown in the figure. Which of the following correctly compares their densities?
A shopkeeper says, '1 kg of cotton and 1 kg of iron weigh the same, but the cotton needs a much bigger bag.' Why?
Mustard oil dissolves completely in water to form a solution.
Ice floats on water because ice is denser than liquid water.
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