Identify the N-substituted derivative of carbonyl compounds that are coloured compounds and are useful in the identification of aldehydes and ketones.(a) Hydrazone(b) Phenylhydrazone(c) 2,4-Dinitrophenylhydrazone(d) SemicarbazoneThis question was posed to me in an internship interview.I'm obligated to ask this question of Aldehydes and Ketones Chemical Reactions in portion Aldehydes, Ketones and Carboxylic Acids of Chemistry – Class 12

Identify the N-substituted derivative of carbonyl compounds that are c

1.	Identify the N-substituted derivative of carbonyl compounds that are coloured compounds and are useful in the identification of aldehydes and ketones.(a) Hydrazone(b) Phenylhydrazone(c) 2,4-Dinitrophenylhydrazone(d) SemicarbazoneThis question was posed to me in an internship interview.I'm obligated to ask this question of Aldehydes and Ketones Chemical Reactions in portion Aldehydes, Ketones and Carboxylic Acids of Chemistry – Class 12
Answer» Right answer is (C) 2,4-Dinitrophenylhydrazone Best explanation: 2,4-DNP derivatives are formed from the reaction between aldehydes or ketones and 2,4-Dinitrohydrazine. These products may be YELLOW, orange or ED COLOURED and help in characterisation of aldehydes and ketones.

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