Test tube Holder
![Image result for image of ppt of evaporation](https://image.slidesharecdn.com/harshchemistryppt-140930041137-phpapp02/95/harsh-chemistry-ppt-3-638.jpg?cb=1412050579)
Paper Chromatography
Questions:
1.Define paper Chromatography.
2.Draw Chromatogram and define it.
3.Why colours spread in filter paper?
Fractional Distillation
http://www.gcsescience.com/e6-crystallization.htm
http://www.bbc.co.uk/schools/gcsebitesize/science/add_aqa/acids/acidsbasesrev5.shtml
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