Smart learn2

  1. Which one of the following is NOT a mixture? A. Air B. Sugar C. Paint D.  Crude oil 2. Oil and water may be separated by using? A. a separating funnel B. a Liebig condenser C. chromatography paper D. a filter funnel 3. Air is a mixture of A. liquids B. solids C. gases D. liquids and gases 4. In a coffee machine, the ground coffee is separated from the coffee solution by using A. toilet paper B. filter paper C. sand paper D. tissue paper 5. Which one of the following techniques would best be used to separate soil and water? A. Decanting B. Filtration C. Fractional distillation D. Chromatography 6. This is a simple method of separating an insoluble solid from a liquid.  A. Filtration  B.  Distillation  C. Evaporation  D. Decantation 7. In the process of evaporation, which one of the following pieces of laboratory apparatus would NOT be used?  A. wire gauze  B. evaporating basin  C. filter funnel  D bunsen burner 8. Which one of t...