A. diffusion
B. migration
C. reaction
D. sedimentation
Correct Answer:
Option B – migration
Explanation
Chromatography is a method of separating mixtures by using a moving solvent on filter paper.
The rate at which each solute moves up the paper depends on how strongly it is absorbed by the paper, and how soluble it is in the solvent.
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![Water of mass 120g at 50°C is added to 200g of water at 10°C and the mixture is well stirred. Calculate the temperature of the mixture. [Neglect heat losses to the surrounding]](https://erudites.ng/wp-content/plugins/contextual-related-posts/default.png "Water of mass 120g at 50°C is added to 200g of water at 10°C and the mixture is well stirred. Calculate the temperature of the mixture. [Neglect heat losses to the surrounding]")