Which ketone reacts with itself under basic conditions to form a nine-carbon β-hydroxy ketone?
Hexan-3-one (CH₃CH₂COCH₂CH₂CH₃) undergoes self-aldol condensation to form 4-hydroxy-3-propylheptan-5-one (CH₃CH₂C(OH)(CH(CH₂CH₃)COCH₂CH₃)CH₂CH₃), a nine-carbon β-hydroxy ketone.
Ref: NCERT Class 12 Chemistry > Chapter 12: Aldehydes, Ketones and Carboxylic Acids > Topic: Nomenclature, Structure and Preparation of Aldehydes and Ketones