Functional Group Tests Flashcards by Ilja Hoeglinger | Brainscape

Q

Alkene

A

Bromine water

Orange colour decolourises

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Q

Carbonyl

A

2,4-DNPH

Orange precipitate

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Q

Aldehyde

A

Tollens’ reagent

Silver mirror formed

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Q

Carboxylic acid

A

Sodium carbonate

Fizzing (CO2 produced)

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Q

1,2 alcohol and aldehyde

A

Acidified potassium dichromate

Orange to green colour change

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Q

Haloalkane

A

Warm silver nitrate in ethanol

White precipitate

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Q

Phenols

A

Sodium then sodium hydroxide

Fizzing with sodium but not sodium carbonate

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