P The Chemical Reaction Between Two Substances Is Characterised By A Change In Colour From Orange To Green These Two Substances Are Most Likely To Be P P B A B Potassium Dichromate Solution And Sulphur Dioxide P P B B B Potassium Permanganate Solution And Sulphur Dioxide P P B C B Potassium Permanganate Solution And Lemon Juice P P B D B Potassium Dichromate Solution And Carbon Dioxide P