Which compound gives a positive 2,4-DNP test and forms a hydrocarbon with eight carbons upon Clemmensen reduction?
Heptan-2-one (CH₃COCH₂CH₂CH₂CH₂CH₃) reacts with 2,4-DNP (ketone) and reduces to heptane (CH₃CH₂CH₂CH₂CH₂CH₂CH₃), an eight-carbon hydrocarbon.
Ref: NCERT Class 12 Chemistry > Chapter 12: Aldehydes, Ketones and Carboxylic Acids > Topic: Nomenclature, Structure and Preparation of Aldehydes and Ketones