Which reagent converts ethanol to acetaldehyde?
Ethanol (CH₃CH₂OH), a primary alcohol, is oxidized to acetaldehyde (CH₃CHO) with PCC, which selectively oxidizes to the aldehyde stage.
Ref: NCERT Class 12 Chemistry > Chapter 7: Alcohols, Phenols and Ethers > Topic: Chemical Reactions of Alcohols - Dehydration Oxidation Esterification