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What is the nature of 2,4-DNP derivatives of carbonyls?
AColourless volatile gases
BBlue-green viscous liquids
CYellow, orange or red solids
DWhite waxy oily liquids
Answer & Solution
Correct answer: C. Yellow, orange or red solids
The coloured crystalline 2,4-dinitrophenylhydrazones have sharp melting points and signal a carbonyl group.
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