what is a simple test to detect the presence of a carbonyl and to identify it?
A carbonyl is either a ketone or an aldehyde. In order to see whether the carbonyl group is present (C double bond O), 2,4-dinitrophenylhydrazine must be used. If an orange/yellow precipate is formed, then a carbonyl group is present. Then, you must purify the precipitate by recrystalisation and measure its melting point. then compare the melting point to known values to determine the compounds identity.
ZM
Related Chemistry A Level answers
All answers ▸Why does bromine water become colourless upon the addition of ethene, but not ethane? What is this reaction called?
Suggest why Phenol is more reactive than Benzene in Electrophillic Substitution
Why does ice float on water?
Differences between Sn1 and Sn2 reactions