Alcohol

• Test: acidified potassium dichromate and heat

• Positive test (primary alcohol) - acidified potassium dichromate changes colour from orange to green

• Positive test (secondary alcohol) - acidified potassium dichromate changes colour from orange to green

• Positive test (tertiary alcohol) - no reaction

Phenol

• Test: FeCl3

• Positive test: Violet colour is observed

Violet colour (positive test for phenol)

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