Functional Group Tests Flashcards

1
Q

Alkenes

A

Bromine water - orange to colourless

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2
Q

Halogenoalkanes

A

NaOH, then dilute nitric acid, then silver nitrate solution - PPT is seen

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3
Q

Alcohols

A

Acidified potassium dichromate (VI) solution - orange to green

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4
Q

Secondary alcohol + ketone

A

Iodine in potassium iodide solution, then sodium hydroxide - pale yellow crystals and antiseptic smell

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5
Q

Carboxylic acid

A

Sodium hydrogen carbonate - fizzing is seen

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6
Q

Carbonyl compounds

A

2,4-dinitrophenylhydrazine - yellow orange ppt

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7
Q

Aldehydes

A

Tollen’s reagant - silver mirror

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8
Q

Ketones

A

Tollens reagent - no change

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9
Q

Amines

A

Sodium nitrite and HCl - fizzing is seen

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