it is abbreviated as$ PCC$ and is called Collin's reagent. This reagent is used in non aqueous solvent like $C{H_2}C{l_2}$
It is a very good reagent because it checks the further oxidation of aldehyde to carboxylic acid while rest oxidising agent oxidise aldehyde into carboxylic acid.
$[Figure]$ $\xrightarrow[{{\text{AlC}}{{\text{l}}_3}}]{{{\text{Succinic anhydride}}}}A\xrightarrow[{{\text{reduction}}}]{{{\text{Clemmenson 's}}}}X$ શું હશે ?
(image) $\xrightarrow[{Pd/carbon,\,ethanol}]{{{H_2}\,(gas,\,\,1\,\,atmosphere)}}\,A$ શું હશે ?
નીપજ $A$ શું હશે ?