Question Detail

CHM 102 Qualitative and Quantitative Analysis in Organic Chemistry Objective Question
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Question

What does the 2,4-dinitrophenylhydrazine (2,4-DNPH) test detect?
Options
A Alcohols
B Aldehydes and ketones (carbonyl group)
Correct Answer
C Carboxylic acids
D Amines
Correct Answer

Option B is the correct answer.

Detailed Explanation

2,4-DNPH reacts with aldehydes and ketones to form yellow/orange/red hydrazone precipitates, confirming the presence of a carbonyl group.

Hint

Orange/yellow precipitate.

Question Info

Course: CHM 102
Topic: Qualitative and Quantitative Analysis in Organic Chemistry
Type: Objective
Difficulty: Not specified
Question 814 of 1999
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