Functional Group Tests Flashcards
1
Q
Alkenes
A
Bromine water - orange to colourless
2
Q
Halogenoalkanes
A
NaOH, then dilute nitric acid, then silver nitrate solution - PPT is seen
3
Q
Alcohols
A
Acidified potassium dichromate (VI) solution - orange to green
4
Q
Secondary alcohol + ketone
A
Iodine in potassium iodide solution, then sodium hydroxide - pale yellow crystals and antiseptic smell
5
Q
Carboxylic acid
A
Sodium hydrogen carbonate - fizzing is seen
6
Q
Carbonyl compounds
A
2,4-dinitrophenylhydrazine - yellow orange ppt
7
Q
Aldehydes
A
Tollen’s reagant - silver mirror
8
Q
Ketones
A
Tollens reagent - no change
9
Q
Amines
A
Sodium nitrite and HCl - fizzing is seen