Chromatography can be used to separate a mixture of ions from different transition element compounds.
Two solutions, Y and Z were placed on a piece of chromatography paper.
Four samples, R, S, T and U, each containing transition element ions, were also placed on the same piece of chromatography paper.
The results of the chromatography are shown.
i)
Explain the results shown for solutions Y and Z.
[1]
ii)
Which sample does not contain the same ions as either solution Y or solution Z?
[1]
iii)
Which sample contains the same ions as both solution Y and solution Z?
[1]
iv)
Which sample has the greatest number of transition element ions?
[1]