The most suitable reagent for the conversion of
`RCH_(2)OHrarrRCHO` is

Options

A. `KMnO_4`
B. `K_2Cr_2O_7`
C. `CrO_3`
D. PCC (Pyridine chloro chromate)

Answer

D

Explanation

The alcohol can be converted to aldehyde group by treating with oxidising agent Pyridinium chloro chromate `(C_6H_5 overset(o+)NHCrO_3Cl^(-))` it is abbreviated as PCC and is called Collin's reagent. This reagent is used in non aqueous solvent like `CH_2Cl_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.