(a(i))[1]
Which mixture, S, T, U or W, contains dye X but not dye Y?
(a(ii))[1]
Which mixture, S, T, U or W, contains the smallest number of dyes?
(a(iii))[1]
Which mixture, S, T, U or W, contains neither dye X nor dye Y?
(b(i))[1]
What is meant by the term reduction?
(b(ii))[1]
What type of chemical reaction occurs? Circle the correct answer. decomposition fermentation oxidation polymerisation