All your burette readings (initials and final), as well as the size of your pipette, must be recorded but no account of experimental procedure is required. All calculations must be done in your answer booklet.

State what would be observed if the following reactions are carried out in the laboratory:

(i) methyl orange is dropped into a solution of lime juice:

(ii) hydrogen sulphide gas is bubbled through Iron (III) chloride solution:

(iii) sulphur (IV) oxide gas is bubbled into acidified solution of KMnO\(_4\):

(iv) ethanoic acid is added to a solution of Ka\(_2\)CO\(_3\)