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.

Answered by Zahra M. Chemistry tutor

15387 Views

See similar Chemistry A Level tutors

Related Chemistry A Level answers

All answers ▸

What is a dative covalent bond?


Describe why phenol reacts more readily with bromine than benzene does.


In terms of Electrostatic Forces, Suggest why the ‘Electron Affinity’ of Fluorine has a Negative value.


Describe how a buffer solution based on hydrochloric acid can act as a buffer. (5)


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2024

Terms & Conditions|Privacy Policy
Cookie Preferences