1. Salt can be recovered from its solution by evaporation. Suggest some other technique for the same2. Which of the following fall in the category of pure substance.Milk, wood. Hydrochloric acid, air, pond water, gold, ice cream, sodium, Copper sulphate3. An unknown compound 'A 'is on thermal decomposition produce 'B' and 'C. What is A? Anelement, compound or a mixture?4. Identify element from the following substances.Sulphur. Brine, Hydrochloric acid, water, Neon, paper, sugar.5. Classify the following as pure substance and mixture.Air, coin, steel, Iron, gasoline, milk, diamond, distilled water, oxygen, 22carats Gold, iodized table salt.sodium chloride.6. Classify the following into element, compound and mixtures.Pure sand, air, Ammonia gas, ice, glass, Calcium oxide, Arsenic oxide.7. Identify suspension, colloid and true solution from the following.Pond water, fog, sand in water, aluminum paint, alcohol and water, vinegar, oil in water, glucosesolution, mist, automobile exhaust, Potassium permanganate in water, shaving cream.8. Classify metals, non-metals and metalloid from the following.Germanium, Boron, Diamond, Iodine, Copper, Helium9. If a beam of light is passed through a solution, the beam of light gets illuminated, then the solution istrue solution, transparent solution, homogeneous solution, colloidal solution.someone help plz​