MDCAT Chemistry MCQ #335

Which reagent is used to identify the presence of a carbonyl group regardless of whether the compound is an aldehyde or a ketone?

MDCAT Chemistry MCQ #335

  1. Question 1

    Q1. Which reagent is used to identify the presence of a carbonyl group regardless of whether the compound is an aldehyde or a ketone?

    • A) Fehling's solution
    • B) 2,4-Dinitrophenylhydrazine
    • C) Tollen's reagent
    • D) Benedict's solution

    Answer: 2,4-Dinitrophenylhydrazine

    Explanation: 2,4-DNP (Brady’s reagent) reacts with both aldehydes and ketones to form yellow or orange precipitates, used for general carbonyl identification.