(a) Name the process by which all the dye can be recovered from black ink.
(b) Name the process by which the various 'dyes' (coloured materials) present in black ink can be separated.

(a) The process of evaporation can be used to recover all the dye from black ink.
(b) Paper chromatography is the process by which various 'dyes' (coloured materials) present in black ink can be separated.