(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 that can be used to recover all the dye from black ink is Evaporation.

(b) The process by which various 'dyes' (coloured materials) present in black ink can be separated is known as Paper chromatography.