(a) How will you separate the components of ink using chromatography ? Explain with the help of a labelled diagram. (b) Which method out of evaporation and crystallisation is a better technique to separate sugar from sugar solution ? Give reason also.

(a) How will you separate the components of ink using chromatography ?

1.	(a) How will you separate the components of ink using chromatography ? Explain with the help of a labelled diagram. (b) Which method out of evaporation and crystallisation is a better technique to separate sugar from sugar solution ? Give reason also.
Answer» Solution :(a) Take a thin strip of filter paper. Draw a line on it using a pencil, 3 cm above the lower edge. Put a small drop of ink at the CENTRE of this line. Lower the filter paper in a jar containing water so that the drop of ink on the filter paper is just above the water level. Leave it undisturbed. As the water rises in the filter paper, the ink particles also RISE along with it. Different colours are obtained on the filter paper. The coloured components of ink which are more soluble rise FASTER. (b) The process of crystallisation is a better technique than the process of EVAPORATION to separate sugar from sugar solution. In evaporation, sugаr may char on heating. Some impurities may go with the filtrate, which on evaporation would contaminate sugar.