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Separation Techniques (Chromatography. (Process (1: A pencil line is drawn…

- - - - The substance that is able to pass through filter paper.
    - - The substance that is unable to pass through the filter paper and remains on the filter paper.
    - - Sometimes a solvent can be added to solid-solid mixtures such that it can be separated by filtration.
- - - - The solvent in a solution can vapourise at any temperature, leaving behind a residue of the solid that was dissolved in the liquid.
- - - - Step 2: The water vapour then rises and enters the condenser.
        
        Step 3: In the condenser, the vapour is then cooled, and condenses into a liquid.
        
        Step 4: This liquid is called the distillate (pure water) and is collected in a receiver, usually a beaker.
- - - - Water obtained is pumped at high pressures through a special membrane.
      - Pores of this membrane are so small that only very small molecules, such as water molecules, can pass through, but not disease-causing micro-organisms, dissolved salts, and chemical molecules.
      - The water obtained from reverse osmosis is free from bacteria and viruses. It also contains trace amounts of dissolved salts and chemicals.