(a(i))
Briefly explain how each method causes separation. partition adsorption
(a(ii))
The table presents three chromatography techniques. Identify which separation method, partition or adsorption, is used for each one. paper chromatography thin-layer chromatography gas/liquid chromatography
(a(iii))[5]
The diagram shows the result of gas/liquid chromatography on a mixture. Determine the percentage of each component, X and Y, present in the mixture.
(b(i))[1]
Why is NMR spectroscopy especially useful for organic compounds?
(b(ii))[4]
Two molecules, propanal and propanone, share the molecular formula $\text{C}_3\text{H}_6\text{O}$. Draw the displayed formula of each compound and briefly explain how NMR spectroscopy can tell the two structures apart.