Which reagent is used to oxidize a primary alcohol to an aldehyde without further oxidation?
Pyridinium chlorochromate (PCC) selectively oxidizes primary alcohols to aldehydes without converting them to carboxylic acids.
Ref: NCERT Class 12 Chemistry > Chapter 7: Alcohols, Phenols and Ethers > Topic: Preparation of Alcohols - from Alkenes Haloalkanes Carbonyls Grignard