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Add bromine water, Add sodium carbonate solution - Coggle Diagram
Add bromine water
Mixture decolourises
Maleic acid
Salicylic acid
Did a white precipitate form in the previous test?
No
Maleic acid
Yes
Salicylic acid
Mixture remains orange/brown
Citric Acid
Tartaric acid
Add acidified dichromate solution and heat
Mixture remains orange
Citric acid
Mixture goes from orange to green
Tartaric acid
Citric acid
Maleic acid
Salicylic acid
Tartaric acid
Add sodium carbonate solution
Mixture doesn't effervesce
Glucose
Menthol
Add Tollens' reagent and heat
A silver mirror forms
Glucose
A silver mirror does not form
Menthol
Mixture effervesces
Citric acid
Glucose
Maleic acid
Menthol
Salicylic acid
Tartaric acid