JEE PYQ: Aldehydes And Ketones Question 9
Question 9 - 2021 (26 Feb Shift 2)
2,4-DNP test can be used to identify:
(1). (aldehyde)
(2). (halogens)
(3). (ether)
(4). (amine)
Show Answer
Answer: (1)
Solution
2,4-DNP reacts with aldehydes and ketones to form coloured precipitates (hydrazones). Used to detect the carbonyl group.