Paper chromatography is an example of:
Paper Chromatography is a type of partition chromatography. Chromatography paper contains water trapped in it, which acts as the stationary phase. The paper selectively retains different components according to their differing partition in two phases.
Paper chromatography is an example of Partition chromatography.
The principle of paper chromatography involved is partition chromatography, in which the substances are distributed or partitioned between the liquid phase and the stationary phase. Water is one of the phases, which is held in the pores of the filter paper used, while the other is the mobile phase which moves over the paper.
A bob of heavy mass \(m\) is suspended by a light string of length \(l\). The bob is given a horizontal velocity \(v_0\) as shown in figure. If the string gets slack at some point P making an angle \( \theta \) from the horizontal, the ratio of the speed \(v\) of the bob at point P to its initial speed \(v_0\) is :
We commonly use these methods for the purification of substances: