tests Flashcards
1
Q
what is the test for an alkene
A
bromine water
orange/brown to colourless
2
Q
what is the test for cl2
A
add NaOH, silver nitrate and neutralise by nitric acid
white precipitate
3
Q
what is the test for br2
A
add NaOH, silver nitrate and neutralise by nitric acid
cream precipitate
4
Q
what is the test for I2
A
add NaOH, silver nitrate and neutralise by nitric acid
yellow precipitate
5
Q
what is the test for alcohols
A
acidified potassium dichromate
orange to green
6
Q
what is the test for an aldehyde
A
tollens reagent - silver mirror
fehlings - brick red precipitate
7
Q
what is the test for a carboxylic acid
A
sodium hydrogen carbonate - bubbles of CO2 form. bubble through limewater turns cloudy
