Chemistry A-Level
2,4-dinitrophenylhydrazone derivative
What 2,4-dinitrophenylhydrazone derivative means in Chemistry A-Level, as defined for OCR.
Definition of 2,4-dinitrophenylhydrazone derivative
Check what you remember
Read the wording for your board, then hide it and explain 2,4-dinitrophenylhydrazone derivative in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
The yellow, orange or red-orange precipitate formed when 2,4-DNP reagent is added to a carbonyl compound dissolved in a minimum of ethanol.
Topics that use 2,4-dinitrophenylhydrazone derivative
- Chromatography and qualitative analysis (OCR A-Level)
Related terms
- Acidified dichromate(VI) and alcohols
- Adsorption and differential movement
- Adsorption and spot position
- Bromine water and alkenes
- Bromine water test for alkenes
- Carbon–halogen bond strength and reactivity
- Carbonyl compounds: aldehydes and ketones
- Characteristic retention time under fixed conditions
Using 2,4-dinitrophenylhydrazone derivative in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
Practise Chemistry questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
Start free
All Chemistry A-Level termsA week of Premium from your first lesson · Then the free plan continues · No card, no charge