In a diagnostic test to confirm the presence of a carbonyl group, a student adds 2,4-Dinitrophenylhydrazine. What visual evidence confirms a positive result?
Q1. In a diagnostic test to confirm the presence of a carbonyl group, a student adds 2,4-Dinitrophenylhydrazine. What visual evidence confirms a positive result?
Answer: Yellow or Orange precipitate
Explanation: Brady's reagent (2,4-DNPH) reacts with the carbonyl group to form yellow or orange precipitates. Blue color is associated with Fehling's reagent, not DNPH.