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The diagram in figure 1 shows some natural and industrial processes. Study it and answer the questions that follow.
(a) Identify te processes labeled A,B,C,D.
(b) State the reagents and conditions required for processes B and D.
(i) Process B:
(ii) Process D:
(iii) State two additives used to improve the quality of soap.
(c) State the reagents required in steps F and G.
(iii) Draw the structure of terylene.
(d) (i) name the polymer formed in step C.
(ii) State one disadvantage of the polymer formed in (d)