Mixtures, solutions, suspensions, colloids, separation techniques, physical and chemical changes.
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Q1 · Is Matter Around Us Pure (Class 9) · EASY
Which one of the following is a homogeneous mixture?
Q2 · Is Matter Around Us Pure (Class 9) · MEDIUM
A solution contains 15 g of common salt dissolved in 135 g of water. What is the concentration of the solution in terms of mass percentage?