Organic tests Flashcards
Test for alkenes
Bromine water
Organe to clear and colourless
Primary Alcohol:
Acidified potassium dichromate
Aldehyde produced orange to green
Test for aldehydes/ketones:
Fehlings (cu2+) blue to red ppt
Tollens (Ammonical silver nitrate) positive silver mirror.
Test for Carboxylic acid
NaHCo3, test gas with limewater
effervesence co2 limewater turns cloudy.
secondary alcohol
Acidified potassium dichromate
ketone produced orange to green
Tertiary alcohol
acidified potassium dichromate
no observed reaction orange solution.
Acyl chloride:
Acidified silver nitrate White ppt
Also steamy fumes HCl
Haloalkane:
Acidified silver nitrate (nitric acid)
White ppt- chloride (dil ammonia)
Cream ppt- bromide (conc ammonia)
Yellow ppt- iodide (no dissolving)