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Application Diagnostic Laboratories for blood and urine test. Download File Q. The fully packed study material, as well as revision notes, are included in “is matter around us pure notes”.It includes pure and impure substances, mixture with its types, solutions, suspension, colloids and depuration of mixtures. Question 1. Contact. (a) Sodium(b) Potassium(c) Mercury(d) Bromine Answer (c) Mercury 2. (a) Fog (b) Cheese (c) Coloured gemstone Answer: (a) Fog—liquid, gas (b) Cheese—liquid, solid (c) Coloured gemstone—solid, solid. There are around 3-5 solved test papers in each chapter. Is Matter Around Us Pure Notes: Do you know you can save a lot of time by reading class 9 notes of science? Heterogeneous and homogenous mixtures, colloids and suspensions. 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